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- Royal Infirmary, Manchester, UK
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These programs are part of a comprehensive software suite for electron crystallography asthma treatment symptoms discount montelukast 10 mg mastercard, have been developed by Xiaodong Zou asthmatic bronchitis journal article cheap montelukast master card, Sven Hovmoller asthma quality of life questionnaire montelukast 5 mg buy low price,¨ and coworkers, and can be ordered at http://www. This understanding has generated profound changes in the field, leading to new families of materials, new concepts, and wide-ranging improvements in the mechanical behavior and in all other properties of materials. In our energy-conscious society, materials and structures are required to be more performant, lightweight, and cheap. The best answer to these requirements is often provided through the powerful concept of reinforcement of a “matrix” material with second-phase dispersion (clusters, fibers). It is an interesting fact that many natural forms of reinforcement possess a nanometric dimension, whereas most cur- rent synthetic composites include fibers in the micrometer range. Expected bene- fits of such “miniaturization” would range from a higher intrinsic strength of the reinforcing phase (and thus of the composite) to more efficient stress transfer, to possible new and more flexible ways of designing the mechanical properties of yet even more advanced composites (1). Presently, reinforcement of common materi- als (alloys, polymers) with nanostructures is one of the most promising areas of study. As one of the major factors that determine the quality of reinforcement is the mechanical strength of nanostructures, the studies of elastic properties of nano- materials are of significant importance. Besides reinforcement, investigation of the mechanical properties of nanowires is essential to determine the material strength for practical implementation as electronic or optical interconnects, as components in microelectromechanics, and as active or passive parts in nanosensors. Mechanical failure of those interconnects or building blocks may lead to malfunction, or even fatal failure of the entire device. Mechanical reliability, to some extent, will deter- mine the long-term stability and performance for many of the nanodevices currently being designed and fabricated. When nanowire properties have been adequately explored and understood, their incorporation into solutions of practical problems will become evident more quickly and feasible for active and concerted pursuit. Nanomechanical measurements are a challenge, but remain essential to the fabri- cation, manipulation, and development of nanomaterials and perhaps even more so to our fundamental understanding of nanostructures. For this purpose, various experimental techniques, or methods, have been developed in the last several years, including tensile, resonance, nanoindentation, and bending tests. Traditional opti- cal microscopy lacks the resolution to investigate phenomena of colloidal dimen- sions adequately, and electron and X-ray techniques are greatly limited either by environmental (e. Today, very few electron microscopes are capable of the true atomic resolution required for fundamental studies on inter- molecular and colloidal behavior of two- or three-body interactions, for exam- ple. In many cases, this is feasible because of lengths exceeding a few microns that scatter enough light for adequate contrast. The tip and sample positions are manipulated relative to each other with piezoelectric or other (e. These are arranged either with three inde- pendent, orthogonal piezoelectric blocks or in a tube configuration. Various attractive and repulsive forces act between the tip and sample, such as van der Waals, electrostatic, and capillary forces. To some extent, such forces can be controlled by altering the sampling medium—for example, sam- pling under water can eliminate the effect of capillary forces. Typically, a diode laser reflects off the back of the cantilever onto a quadrant photodetector, which senses cantilever bending and twisting. If the cantilever spring constant is known, the cantilever deflections may be converted to quantitative force data. Cantilevers are sold with typical force constants that may, in fact, vary by an order of magnitude from reported aver- age values. For a uniform, rectangular cross-section, the cantilever’s spring constant is given by k = Ewt3/4l3, where w is the width of the cantilever, l is its length, t is its c thickness, and E is the elastic modulus. Most cantilever probes are rectangular or triangular with a “two-beam” geometry connecting at the tip. From the deflection of the cantilever, we calculate tip-sample force data by using Hooke’s law F = kcz, where F is the magnitude of the force acting between the tip and sample, kc is the cantilever spring constant, and z is the cantilever deflection at its free end. In most imaging modes, a feedback 316 Dobrokhotov system senses instantaneous cantilever deflection and adjusts scanner elements to maintain a constant interaction between the tip and sample. For example, selective chemical functional groups may be attached to the probe, generating force data reflecting sample composition. The image produced will thus be a convolution map of chemical makeup, not merely surface topogra- phy.
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Contraindications Hypersensitivity to nifedipine (any component) and recent myocardial infarction asthma definition 1st cheap 5 mg montelukast amex. Patients receiving concomitant treatment with β-blockers are at increased risk of hypotension asthma symptoms hay fever generic 10 mg montelukast otc. Angina and acute myocardial infarction in adults has been reported with initiation of nifedipine therapy asthma exacerbation icd 10 buy generic montelukast canada. Drug-Drug Interactions Concomitant use of β-blockers may increase cardiovascular adverse events. Nifed- ipine may increase the serum concentrations of phenytoin, cyclosporin, and possibly digoxin. Combined administration with cyclosporin in transplant patients seems to increase significantly the incidence of gingival hyperplasia. Administra- tion of calcium typically reduces the effects of a calcium channel-blocking agent. Avoid coadministration with grapefruit juice, because this may increase oral bioavailability. Calcium Channel Blockers: Pharmacology and Place in Therapy of Pediatric Hypertension. Calcium Channel Blockers: Amlodipine Indication Amlodipine is used in adults for the treatment of angina pectoris and also for hypertension. Thus, it decreases the intracellular concentration of calcium such that less calcium is available to contractile proteins in these cells. Relaxation of the coronary vascular smooth muscle specifically treats anginal pain by increasing myocardial oxygen delivery. Dosing Neonates and infants: Specific dosing information has not been obtained for neonates and infants Oral, hypertension: for children ages 6 to 17 years, the manufacturer’s recommended dose is 2. Insuf- ficient data exist on doses greater than 5 mg/day in pediatrics Adults: Oral: Hypertension: initial, 2. Lower doses are appro- priate for patients with hepatic impairment; no adjustment for renal impairment is required Pharmacokinetics Onset of action: 30 to 50 minutes Absorption: well absorbed orally Distribution: mean volume of distribution: Children older than 6 years: similar to adults on a per-kilogram basis Adults: 21 L/kg Maximum effect: peak serum concentration at 6 to 12 hours Half-life: terminal half-life 30 to 50 hours Duration: ≥ 24 hours with routine dosing Protein binding: 93% Metabolism: in the liver, with 90% metabolized to inactive metabolites Clearance: in children older than 6 years of age, weight-adjusted clearance is similar to adults 96 S. Elimination: 10% of unchanged drug and 60% of metabolites are excreted in the urine. Amlodipine is not removed by dialysis Monitoring Parameters Blood pressure and liver enzymes. Adverse Effects Cardiovascular: More common: flushing, palpitations, peripheral edema Rare: hypotension, dysrhythmia, chest pain, syncope, peripheral ischemia, vasculitis, myocardial infarction Respiratory: dyspnea, pulmonary edema, epistaxis Central nervous system: More common: headache, dizziness, somnolence, fatigue Less common: insomnia, vertigo, depression, anxiety Gastrointestinal: nausea, abdominal pain, dyspepsia, anorexia, constipation, diarrhea, dysphagia, pancreatitis, vomiting, xerostomia, gingival hyper- plasia Hepatic: jaundice, elevated liver enzymes Genitourinary: sexual dysfunction Neuromuscular and skeletal: muscle cramps, asthenia, arthralgia, myalgia, paresthesia, peripheral neuropathy, hypoesthesia, tremor Endocrine/metabolic: weight gain or loss, gynecomastia, hyperglycemia Hematological: thrombocytopenia, leukopenia, purpura Ophthalmological: diplopia, abnormal vision, eye pain, and conjunctivitis Cutaneous/peripheral: rash, pruritus, erythema multiforme, angioedema Other: tinnitus, diaphoresis, increased thirst Precautions In adult patients with severe coronary artery disease, both initiation of amlod- ipine therapy and increased dosing have been associated with increased severity and frequency of angina as well as acute myocardial infarction. Increased caution should be used in patients with impaired hepatic function because of amlodipine’s hepatic metabolism. Do not discontinue amlodipine abruptly in patients with angina or significant coronary artery disease. Vasodilators 97 Drug-Drug Interactions Concomitant administration of rifampin may decrease serum amlodipine concentration. As for all calcium channel-blocking agents, administration of calcium may mitigate the drug’s effect. Compatible Diluents/Administration Amlodipine tablets may be administered without regard to food, because food does not affect its bioavailability. Concomitant ingestion of grapefruit juice increased amlodipine peak serum concentration in some reports but not others. Calcium Channel Blockers: Nicardipine Indication Nicardipine is used in adults for the treatment of angina pectoris and hyper- tension. Thus, it decreases the intracellular concentration of calcium such that less calcium is available to contractile proteins in these cells. Relaxation of coronary vascular smooth muscle specifically treats anginal pain by increasing myocardial oxygen delivery. Once target blood pressure is achieved, decrease infusion rate to 3 mg/h or lowest rate to achieve desired blood pressure Pharmacokinetics Onset of action: Oral: 0. Bioavailability, oral dose, 35% Distribution: volume of distribution in adults, 8. Not removed by dialysis Monitoring Parameters Blood pressure, heart rate, liver function, and renal function. Contraindications Hypersensitivity to nicardipine or any component, and significant aortic stenosis.
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In addition asthma handouts discount montelukast generic, the controls had to have survived free of any second primary neoplasm for at least as long as the interval between the first primary neoplasm and secondary leukaemia in the corresponding case asthmatic bronchitis diet buy cheap montelukast on-line. Of those patients receiving chemotherapy (69% of cases asthma treatment 2 buy discount montelukast 4 mg online, 55% of controls), 77% had received alkylating agents, 51% antibiotics, 54% antimetabolites, 97% vinca alkaloids and 30% epipodophyllotoxins. Ten patients with leukaemia had received epipodo- phyllotoxins during their treatment: nine had received teniposide and one had received etoposide. Multivariate analysis of the relative risk for leukaemia (adjusted for active bone marrow radiation dose and exposure to alkylating agents) according to the total dose of epipodophyllo- toxins estimated by either method showed evidence of a trend (p = 0. The controls had to have survived without a second cancer for at least as long as the interval between the diagnosis of Hodgkin disease and leukaemia in the case patient. Controls were matched to the case patient on cancer centre, sex, date of birth and date of diagnosis of Hodgkin disease. In multivariate analyses, all of the relative risks were adjusted for mechlorethamine dose, lomustine, dacarbazine, cyclophosphamide given in combinations, teniposide, interaction between cyclophosphamide and teniposide, splenectomy and number of episodes of chemotherapy. In these analyses, treatment with teniposide (median dose, 300 mg; seven cases, six controls) did not increase the risk for leukaemia (relative risk, 0. Since only one case patient and two controls received teniposide without cyclophosphamide, however, the independent effect of teniposide on the risk for leukaemia could not be assessed reliably. Treatment with cyclophosphamide alone was not significantly associated with an increased risk for leukaemia. The combination of cyclophosphamide and teniposide, which had been used in six patients who developed leukaemia and four controls, was associated with a strongly increased relative risk (125 000; p = 0. Studies of Cancer in Experimental Animals No data were available to the Working Group. Risks for acute myeloid leukaemia in children treated for primary neoplasms with epipodophyllotoxins, in relation to dose Dose of epipodophyllotoxin No. After intravenous administration of 50–200 mg/m2, the disposition of the drug typically fitted a two-compartment model, with terminal elimination half- times of 6–10 h (Rossi et al. Tri- exponential decay has also been reported, with terminal half-times of 26 h after admin- istration of [3H]teniposide (Creaven & Allen, 1975), 20 h after a low intravenous dose of 30 mg/m2 (Canal et al. The distribution volume of teniposide in these studies was 8–30 L/m2, indi- cating that the drug is distributed mainly in the extracellular fluid compartment, with a total plasma clearance rate of 7–17 mL/min per m2 and a low renal clearance rate of 0. The pharmacokinetics of teniposide was linear up to 1000 mg/m2, the highest dose tested (Holthuis et al. After intravenous infusion of 150 mg/m2 over 24 h in adults, the peak plasma concentrations were 4–12 μg/mL (D’Incalci et al. In children receiving 450 mg/m2 over 72 h, 10 of 11 values were between 4 and 13 μg/mL, and the remaining value was 30 μg/mL (Rodman et al. Considerable variation in the pharmacokinetics of teniposide between patients has been described, which may explain some of the variation in the pharmacodynamics of the drug. This resulted in a > 50% increase in systemic exposure, as measured by the steady-state plasma concentration (15. In children given teniposide, the main metabolite in serum and urine was reported to be the hydroxy acid, formed by opening of the lactone ring; the cis-isomer, which may be a degradation product formed during storage, was also detected. The aglycone, formed by loss of the glucopyranoside moiety, was not detected (Evans et al. The hydroxy acid has not been found in plasma or urine in other studies with high doses of teniposide, and no changes in the measured concentration of teniposide in these samples was found after incubation with glucuronidase, indicating formation of little or none of the proposed glucuronide metabolites (Holthuis et al. In another study, however, 6% of the administered dose of teniposide was excreted in the urine as parent drug over 24 h, and a further 8% as a proposed aglycone glucuronide, which was not formally identified (Rossi et al. In patients given [3H]teniposide, urinary excretion accounted for about 45% of the administered radiolabel and biliary excretion for < 10% (Creaven & Allen, 1975). With high-performance liquid chromatography assays specific for teniposide, urinary excretion accounted for only 4–14% of the dose up to 24 h (Rossi et al. Teniposide was detected in one patient who died three days after a cumulative intra- venous dose of 576 mg, the highest concentrations occurring in the spleen, prostate, heart, large bowel, liver and pancreas. Teniposide was not detected in any tissue from four patients who died 5–52 days (median, eight days) after their last treatment with teniposide, for a cumulative dose of 234–1577 mg, indicating a relatively short tissue half-time (Stewart et al.
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Polymer amount Polymer (Eudragit asthma wheezing definition safe 10 mg montelukast, Evonik) Property Function % (w/w) mg/cm² Poly(butyl methacrylate-co-(2-dimethylaminoethyl) methacrylate-co-methyl Cationic asthma youtube purchase montelukast 10 mg visa, Moisture protection 10–30 1–6 methacrylate) 1:2:1 (Eudragit E types) soluble < pH 5 Taste masking 5–10 1–2 Anionic asthma treatment 4 burns order 4 mg montelukast overnight delivery, Enteric protection, Poly(methacrylic acid-co-ethyl acrylate) 1:1 (Eudragit L 30 D-55 and L 100-55) 10–30 4–6 soluble > 5. Particles in close contact Film formation and curing Particles deformation The mechanism of film formation is different for dispersions Packing of deformed particles and solutions. Mechanically Free volume With solutions, the polymer and the liquid phase are in a ho- coherent dry films mogeneous system, as shown in Figure 2. Established in 1976, the world’s leading pharmaceutical com- panies have come to depend on Coating Place as their most trusted and reliable source of Wurster processing for: >> Feasibility studies >> Process validation >> Formulation development >> Scale-up >> Analytical laboratory support >> Technology transfer >> Commercial manufacturing >> And more We offer unsurpassed knowledge and expertise in the microencapsulation of powders, granules, and crystals for: >> Oral delivery for controlled, delayed, sustained, or enteric release >> Taste or odor masking >> Moisture or oxygen barrier applications >> Time release ion resin suspension technology email: info@coatingplace. The film is formed by evaporation of the solvent, and the process temperature de- fines the evaporation speed. If the solvent is evaporated too fast, free volume in the polymer film will be generated, and aging Concentrated Dense polymer effects can occur as described above. Highly diluted polymer chains polymer chains film In general, removing volatile sub- in solution in solution stances (i. This effect should not be con- Application Difficulty * Remarks fused with aging of the polymer film. Such particles will meet randomly and Multilayer coatings 3–5 Difficulty increases with increasing number of layers and if form larger granulates by sticking to each nozzle cleaning is required other. In the case of coating, exactly the op- *1=least difficult, 5=most difficult posite is required. No particles should meet in a wet state because of the risk of forming agglomerates. This reduction Organic solution, high viscosity in spray rate will in turn increase overall Aqueous solution, low viscosity, process time. Compared to Organic solution, low viscosity, suspended particles top-spray coaters, the mechanical set- suspended particles up of the bottom-spray coaters is better Dispersion, low viscosity High shear forces can lead to coagulation for preventing agglomerates. The most Dispersion, low viscosity, 3–5 High shear forces can lead to coagulation, liquid should commonly known bottom-spray system suspended particles be in motion to avoid settling of suspended particles is the Wurster coater. It was invented in *1=least difficult, 5=most difficult 1953 and continued to be the state-of- the-art for 35 years. Aging or further coalescence can faced serious issues with agglomeration, regular nozzle block- occur if the film is stored at temperatures above the T. Duringg ages, and necessity of splitting batches if higher weight gains aging, free volume is reduced, which typically leads to lower were required. Such product losses, extremely long processes, and difficult scale- polymer films need special postprocessing to accelerate the up procedures, which drove demand for the development of a aging process and ensure stable storage formulations if the new generation of coaters. Super Refined Castor Oil is an ideal solvent for multiple dosage forms, as well as an excellent lipid vehicle Multi-compendial Compliance for injectable formulations. Both follow the princi- Mini tablets 1–3 Narrowest particle size distribution, good flowability, tendency to pal idea of the Wurster coater but elimi- break depending on tablet formulation nate most of its limitations through me- Granules, high shear 2–3 Variation in particle size, good flowability, slight tendency to break chanical optimizations and improved Granules, fluid bed 3–5 High variation in particle size, good flowability, high tendency to break fluid dynamics. These machines elimi- nated many of the shortfalls in earlier Crystals 1–5 Difficulty of crystals is hard to predict as there is huge variability in size, shape, brittleness and hardness; suitability of crystals as systems and were technology leaders substrate needs to be carefully evaluated for the following decades. Hüttlin’s Modern Bottom <125 State of the art Kugelcoater and Aeromatic-Fielders Tangential FlexStream marked the next stage in de- velopment by eliminating the need for columns. Gun-to-product distance (cm) 7 19 19 The systems’ performance is similar to the Tube diameter (mm) 1. Inlet air temperature (°C) ~43 ~48 ~48 Outlet air temperature (°C) ~23 ~24 ~23 Application matrix Product temperature (°C) ~22 ~23 ~22 Because particle coating is a highly com- plex process, thorough knowledge about Spray rate (g/(min*kg)) 6-14 5-13 3-7 the type of application, coating liquid, Inlet air humidity (g/kg) ~4. An ap- Outlet air humidity (%]) 52–74 56–78 45–79 plication matrix was developed from the Spraying time (min) 95 113 185 experience of numerous particle-coating projects to assist in rating the difficulty connected with coating. For sterile manufacturers, the n Managers, group leaders, or quality bar is even higher as sterile manufacturing has become directors external or third-party increasingly more complex due to the increase in the number manufacturing of poorly stable compounds, new technologies, unit opera- n Managers, group leaders, tions, and controls. Purified water was used as diluent; the 70 solid content of the spraying suspension 60 was 20%. Differences in drying air capacity and Figure 4: Six month storage-stability test of pilot-scale batch.
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A lot shall for temperature to the equivalent at 20 be deemed to be in compliance for °C asthma 1 year old montelukast 4 mg discount, but without correction for invert packing medium density based on the sugar or other substances asthma definition quotient 5 mg montelukast purchase free shipping. A lot shall be (n) The procedure for determining deemed to be in compliance for fill of drained weight is as follows: Tilt the container (packing medium and fruit opened container so as to distribute ingredient) when the number of the contents evenly over the meshes of defectives does not exceed the accept- a circular sieve which has previously ance number (c) in the sampling plans asthma treatment 4 anti-aging order montelukast australia. A container, a por- cific Standardized Canned tion of the contents of a container, or Fruits a composite mixture of product from small containers that is sufficient for §145. Any sample unit shall comminuted or chopped apples (Malus be regarded as defective when the sam- domestica Borkhausen), which may or ple unit does not meet the criteria set may not be peeled and cored, and which forth in the standards. The max- the optional ingredients specified in imum number of defective sample units paragraph (a)(2) of this section. The permitted in the sample in order to apple ingredient is heated and, in ac- consider the lot as meeting the speci- cordance with good manufacturing fied requirements. If no such sweetener is added, 202–741–6030, or go to: http:// the name may include the word "un- www. The following clared on the label as required by the safe and suitable optional ingredients applicable sections of parts 101 and 130 may be used: of this chapter. A collection of primary con- life of the food under customary condi- tainers or units of the same size, type, tions of distribution. The number of primary or inferiority or makes the finished containers or units in the lot. A container, the en- cating the presence of any flavoring tire contents of a container, a portion that characterizes the product as speci- of the contents of a container, or a fied in §101. The of two or more of the following safe maximum percent of defective sample and suitable optional ingredients: units permitted in a lot that will be ac- (i) Natural and artificial flavors. I (4–1–10 Edition) of any definition that may appear in (ii) The style of the apricot ingre- §145. The style percent, the medium shall be des- of the apricot ingredient shall be pre- ignated as "slightly sweetened water"; ceded or followed by "Unpeeled" or or "extra light sirup"; "slightly sweet- "Peeled", as the case may be. When the (b) When the density of the solution packing medium is prepared with a is 16 percent or more but less than 21 sweetener(s) which imparts a taste, fla- percent, the medium shall be des- vor or other characteristic to the fin- ignated as "light sirup"; "lightly ished food in addition to sweetness, the sweetened fruit juice(s) and water"; or name of the packing medium shall be "lightly sweetened fruit juice(s)", as accompanied by the name of such the case may be. The name of (b) In the case of a combination of the food shall also include a declara- two or more fruit juices, the names of tion of any flavoring that characterizes the juices in the order of predominance the product as specified in §101. When two or more of juices any of which are made from con- the optional ingredients specified in centrate(s), the words "from con- paragraphs (a)(1) (ii) through (iv), in- centrate(s)" shall follow the word clusive, of this section are used, such "juice(s)" in the name of the packing words may be combined as for example, medium and in the name(s) of such "Seasoned with Cider Vinegar, Cloves, juice(s) when declared as specified in Cinnamon Oil and Apricot Kernels". Use the cir- such names and the words "from con- cular receptacle for testing units of centrate," as specified in paragraph such size that a test piece can be (a)(4)(ii)(c) of this section, shall appear trimmed therefrom to fit it. Use the in an ingredient statement pursuant to rectangular receptacle for testing the requirements of §101. Each of the in- at least 1⁄2 inch by 1 inch cannot be gredients used in the food shall be de- trimmed. Test the piece by means of a clared on the label as required by the round metal rod 3⁄16 inch in diameter. The lower end of with the method prescribed in para- the rod is a plane surface to which the graph (b)(2) of this section are pierced vertical axis of the rod is perpen- by a weight of not more than 300 dicular. Set (ii) In the cases of whole apricots, the receptacle so that the surface of halves, and quarters, the weight of the the test piece is held horizontally. Test all units in containers of 50 units (iv) In the cases of whole apricots, or less, except those units too small for halves, and quarters, all units are testing or too soft for trimming. Test untrimmed, or are so trimmed as to at least 50 units, taken at random, in preserve normal shape. If the unit is of after the corresponding number of each different firmness in different parts of subparagraph of paragraph (b)(1) of this its peel surface, trim the piece from section which such canned apricots fail the firmest part. Such food is sealed in a container label shall bear the general statement and before or after sealing is so proc- of substandard fill specified in essed by heat to prevent spoilage. Such packing medium (ix) Strawberry varieties conforming may be thickened with pectin and may to the characteristics of Fragaria. If the packing medium is carbohydrate sweetener for which a thickened with pectin, the label shall standard of identity has been estab- bear the statement "thickened with lished in part 168 of this chapter shall pectin". When any organic salt or acid comply with such standard in lieu of or any mixture of two or more of these any definition that may appear in is added, the label shall bear the com- §145.
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When alone or with friends asthma symptoms bronchitis symptoms order 5 mg montelukast overnight delivery, or even when talking about certain topics with the examiner uncontrolled asthma definition gina discount montelukast 10 mg free shipping, the malingerer may show a surprising amount of responsiveness and alertness asthma bronchitis icd 9 code montelukast 10 mg purchase without a prescription. However, Eissler (22) warns that the good malingerer is on guard to maintain his symptoms at all times, and that the behavior of both the normal and the abnormal changes when in solitude or when not being questioned by an authority figure. Mutism This appears to be a most difficult ruse to expose, but also a difficult one for the malingerer to maintain. Mutism may result from psychosis, organic brain disease, hysteria, or may just be malingered. If it is a manifestation of cerebral involvement, the other symptoms mentioned above may be evident. If it is of a psychotic nature, the -285- patient will probably be withdrawn and not responsive to his environment. Since it is a difficult symptom to maintain over a long period of time, the malingerer may give himself away in an unguarded moment. The hysterical patient will probably be able to speak during narcosis, whereas the malingerer will probably continue to be mute. Telltales of Imposture Aside from the likelihood that the simulator will not realistically and consistently portray the symptoms of the disorder he is feigning, he may also show evasive and uncooperative behavior while he is being examined (28, 47, 58, 72). Since he is aware of the unreality or exaggeration of his symptoms, he is apprehensive lest others recognize his ruse, and this leads him to be especially suspicious, mistrustful, and cautious. Of course, this behavior is also typical of the true paranoid patient and therefore cannot in itself be taken as evidence of malingering. However, as Sarbin (77) indicates, a person must move cautiously and uncertainly when he is not sure what is expected of him and how his partner in the social situation may react. Thus the hysteric, who is convinced of the reality of his symptoms, may revel in being examined, but the simulator attempts to avoid examination. In his attempts to forestall examination, he may complain of physical illness, or he may behave in a sulky, aggressive manner. He may be ill at ease, laugh in a self-conscious manner, be alert, watchful, and quick to take issue. Reid and Arthur (28), in their discussion of the behavior symptoms of lie-detector subjects, observed that those who were later proven guilty tended to show certain similarities in behavior. The guilty persons were reluctant to take the test, and they tried in various ways to postpone or delay it. They often appeared highly anxious and sometimes took a hostile attitude toward the test and the examiner. Evasive tactics sometimes appeared, such as sighing, yawning, moving about, all of which foil the examiner by obscuring the recording. Before the examination, they felt it necessary to explain why their -286- responses might mislead the examiner into thinking they were lying. Thus the procedure of subjecting a suspected malingerer to a liedetector test might evoke behavior which would reinforce the suspicion of fraud. However, it should be noted that certain persons such as psychopaths show few manifest signs of anxiety (Lykken, 56), and others are cool, reserved, and underreact to the lie-detector situation (10, 46). But, generally, the unskilled malingerer is apt to to be reluctant to be examined and to exert too much obvious effort in circumventing the usual diagnostic techniques. This little bit of play acting made the examiners only too anxious to strip away his mask of health and to discover triumphantly the epilepsy which he was so cleverly simulating. Some Unmasking Techniques Among the "strategic ruses" offered by Jones and Llewellyn (47) is the method of suggestion. In this procedure, the interviewer suggests other symptoms by inquiring about their presence, and usually about symptoms which might be inconsistent with the syndrome originally presented. If the malingerer does not immediately agree that he suffers with that symptom, he may show up with it at the next interview. Cases are reported in the literature where the malingerer picked up the most outlandish and unusual suggestions made by the examiner and displayed that bizarre behavior shortly after the interview. This may consist of any number of devices, including drugs, electroshock, or hypnosis.
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Since the theories here discussed are not mutually contradictory asthma symptoms exercise-induced order montelukast, it is quite possible that all the conditions referred to are actually operative in some degree in the detection situation asthmatic bronchitis chest x ray order montelukast 4 mg online. In that event detection would be best when critical questions are associated with somewhat traumatic past events asthma of the skin order montelukast now, when S is threatened with possible but not certain punishment as a result of lying, and when critical questions, perhaps by reason of the uncertain consequences, arouse conflicting reactions in S. Although direct, practical experience is lacking, some general findings of laboratory experiments are applicable. The relevance of many of the experiments for the criminal detection problem suffers from the fact that they involved no "crime. From their success, we may conclude that crime is not essential for lie detection. Studies directed specifically to these distinctive problems would be required for more reliable conclusions regarding the applicability of findings from previous experimentation to practical employments in intelligence interrogations. One may suppose that the person questioned, typically, will have little personal involvement in information sought. The questions frequently will not be about something he has done or for which he feels responsible or guilty. Perhaps he is not very deeply motivated to conceal the specific items or information, but loyalties and threatened penalties may dispose him -164- to do so. If the source regards the matter as unimportant, the motivational aspects of the situation would be rather like those in the common demonstration of detecting which card has been picked from a deck, a trick not difficult to do as a parlor game when a "lie detector" is available. However, if the source is highly motivated toward concealment and anticipates reprisals if he "breaks," the situation is rather like crime detection. Special considerations also arise in the intelligence interrogation situation because of the kinds of people to be interrogated, their physiologic condition, their emotional state, and their attitudes. They differ from both the suspected criminals and the normal individuals or college students used in most experiments. The effect of factors like these is scarcely known for the groups already studied. One naturally speculates about the possibility of devising a few recording instruments that would need no attachment to S and might be concealed from him. Considering the complex problems attending overt electrodes and recorders, the information gained from hidden instruments is likely to be quite meager and unreliable. Furthermore, it is not certain that an S who is not aware of the process would actually respond in the same way as one who is. It would seem necessary that interrogators use the ordinary type of instrument and rely on persuasion or coercion to get subjects into it. There is still the possibility that sophisticated subjects would, under coercion, introduce confusion by moving about and controlling breathing. Nevertheless, on the basis of the facts known from laboratory and field work one might expect that the physiologic methods can be applied to intelligence interrogations with reasonable success. Summary In spite of the early scientific foundations of lie detection in the work of Benussi, Marston, Larson, and Summers (2, 22, 23, 29, 33, 34) there is at present a rather broad gap between current practice and -165- scientific knowledge. There is, on the one hand, some information from the laboratory, which could be applied, and there are procedures of questioning, developed in field work, which await experimental testing. Although variation in procedure and in selection of cases makes present field data quite difficult to evaluate, it does seem probable that a significant amount of detection is being secured by physiologic methods. Laboratory science can make some immediate contributions to the improvement of detection methods. Developments have made possible better instrumentation for the recording and analysis of variables which currently figure in criminal detection, and suggest the possibility of recording various others which could increase the accuracy of detection. For some of these additional variables, experimental evidence is already available, others have yet to be tested. Experiments have also yielded certain results that could be applied to interrogation procedures, of which the following are illustrative. The factor of adaption, differential to particular responses, could be allowed for systematically. The attitude of the examinee influences results considerably; they are better when he does not believe the instrument is infallible.
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In this chapter asthma cigarettes best 4 mg montelukast, both conventional and novel approaches to achieving oral drug delivery have been reviewed asthma definition 401k buy genuine montelukast. Targeted drug delivery to specific regions within the gastrointestinal tract bronchial asthma medical definition 10 mg montelukast purchase with visa, prolonging drug release to longer than one day, and manipulating the interplay of polymer-epithelial cell interactions for the optimization of drug absorption, are examples of promising oral drug delivery opportunities awaiting future development. Uptake of antigen by the M cells of the Peyer’s patches stimulates the production of Ig-A committed B cells and T helper cells. These cells migrate through the lymphatics and enter the blood via the thoracic lymph duct. The cells then “home” to various mucosal sites where they undergo 167 Fletcher, C. Where are Peyer’s patches found in the gastrointestinal tract, and what is their major function? Describe three ways by which the oral absorption of poorly absorbed drug moieties may be improved? However, in addition to topical delivery, there has been considerable interest in the possibility of oral transmucosal delivery in order to achieve the 169 systemic delivery of drug moieties via the mucous membranes of the oral cavity. Oral transmucosal drug delivery can be subdivided into: • sublingual drug delivery: via the mucosa of the ventral surface of the tongue and the floor of the mouth under the tongue; • buccal drug delivery: via the buccal mucosa—the epithelial lining of the cheeks, the gums and also the upper and lower lips. Various physiological differences between the buccal and sublingual regions (described below) mean that the types of dosage forms appropriate for these two routes are very different. Keratinized epithelium is dehydrated, mechanically tough and chemically resistant. It is found in areas of the oral cavity subject to mechanical stress such as the mucosa of the gingiva (gums) and hard palate (roof of mouth). Non-keratinized epithelium is relatively flexible and is found in areas such as the soft palate, the floor of the mouth, the lips and the cheeks. Oral epithelium is broadly similar to stratified squamous epithelia found elsewhere in the body, for example the skin (see Section 8. The phases of this dynamic process are represented in four morphological layers: • basal layer; • prickle cell layer; • intermediate layer; • superficial layer. Structural changes that occur during this upward transit, from basal to superficial layer, include the cells becoming: 170 Figure 7. This maturation and differentiation process is broadly similar to the process for keratinized epithelium, although obviously cells of keratinized epithelium also show increasing amounts of the fibrous protein, keratin, in the upper layers. The process of maturation from basal cell through to desquamation (shedding) has been estimated at 13 days for the buccal epithelium and this process is probably representative of the oral mucosa as a whole. Thus the rate of cell turnover in the oral cavity is considerably faster than that of skin, which takes approximately 30 days (see Section 8. This matrix is thought to play a role in cell-cell adhesion, as well as acting as a lubricant to allow cells to move relative to one another. Membrane coating granules present in both keratinized and non-keratinized oral epithelium are first evident in the prickle cell layer. These same organelles are also evident in the epidermis of the skin (see Section 8. The granules fuse with the plasma membrane in approximately the upper third quarter of the epithelium and extrude their lipidic contents into the intercellular space. Keratinized epithelium shows a lipid pattern of mainly neutral lipids such as ceramides, whereas the non-keratinized epithelium contains predominantly polar lipids, particularly cholesterol sulfate and glucosylceramides. It is through the blood vessels in the lamina propria that drug moieties can gain entry to the systemic circulation. Saliva is a hypotonic, watery secretion containing variable amounts of mucus, enzymes (principally amylase and the antibacterial enzyme lysozyme), antibodies and inorganic ions. Two types of secretory cells are found in the salivary glands: serous cells and mucous cells. The parotid glands consist almost exclusively of serous cells and produce a thin, watery secretion rich in enzymes and antibodies. The sublingual glands have predominantly mucous secretory cells and produce a viscid mucous secretion. The submandibular glands contain both serous and mucous secretory cells and produce a secretion of intermediate consistency.
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The second case was in a five-month-old girl with Langerhans cell histiocytosis diagnosed in June 1987 who was treated with intravenous etoposide (100 mg/m2 eight doses asthma definition hubris buy montelukast online now, two or three times a week) asthma definition emedicine discount montelukast 4 mg buy on-line, in addition to bolus vincristine asthma the movie montelukast 5 mg order with mastercard, intravenous cyclophosphamide at doses unlikely to be leukaemogenic, intra- venous methotrexate and oral prednisolone. The total doses of etoposide and cyclo- phosphamide administered were 1860 mg (4800 mg/m2) and 4070 mg (10 800 mg/m2), respectively. The first patient, aged 34, developed acute myeloid leukaemia 63 months after treatment with bleomycin, cisplatin and etoposide. The other patient, aged 36, developed acute myelomonocytic leukaemia 27 months after radiotherapy and bleomycin, etoposide, vinblastine and cisplatin. Thus, the observed cumulative inci- dences in most studies are clearly higher than the incidence in the general population. An Austrian, Dutch, German, Swiss cohort was formed, consisting of 363 patients (223 boys, 140 girls) who were enrolled in trials for the treatment of newly diagnosed disseminated or relapsed Langerhans cell histiocytosis between 1983 (since use of eto- poside began in these countries) and 1995 (Haupt et al. In 1983–91, the induction chemotherapy comprised prednisone, vinblastine and etoposide, and continuation treatment consisted of 46 weeks of therapy with 6-mercapto- purine and re-induction pulses of prednisone, vinblastine with/without etoposide, with/ without methotrexate. The total cumulative dose of etoposide was 900 mg/m2 for subjects who received the drug only in the induction phase and 2100 mg/m2 for those given continuation treatment. In 1991–95, the patients were randomized into two groups, one receiving vinblastine and the other receiving etoposide (cumulative dose, 3600 mg/m2). In this cohort, 123 patients had received etoposide alone or in combination with other drugs not known to be leu- kaemogenic, whereas 41 patients who had not responded adequately to these treatment protocols were subsequently given doxorubicin and/or cyclophosphamide in addition to etoposide. For subjects treated with etoposide, the total cumulative dose received ranged between 150 and 17 600 mg/m2 (median, 2000 mg/m2); only 14 patients were treated with doses exceeding 4000 mg/m2. No cases of acute myeloid leukaemia were reported; however, the rate in the Saarland Cancer Registry in Germany indicated that only 0. The expected number of cases of leukaemia was estimated from age- and sex-specific inci- dence rates derived from the Varese Cancer Registry in Italy. The cumulative dose of etoposide ranged between 100 and 30 000 mg/m2 (median, 5200 mg/m2); 70 children received more than 4000 mg/m2. Five cases of acute promyelocytic leukaemia were diagnosed, all in etoposide-treated patients (four girls, one boy; latency, 27–106 months). No cases of acute promyelocytic leukaemia were observed in patients who had not received etoposide. Both studies lacked sufficient power to detect a signi- ficant difference in leukaemia risk between patients with Langerhans cell histiocytosis treated with and without etoposide, although no cases of acute myeloid leukaemia were observed without etoposide treatment. The Working Group also noted that a small, unspecified proportion of patients in the Italian cohort were treated with teni- poside (Haupt et al. The absence of an increased risk for acute myeloid leukaemia after this regimen has now been documented in several large studies of the risk for second malignancies (Pedersen-Bjergaard et al. Further evidence for the absence of cases of acute myeloid leukaemia with myelodysplastic syndrome in patients treated with this regimen comes from several trials with long-term follow-up (Ozols et al. Thirty-five patients, treated between 1979 and 1983, received cisplatin, vinblastine and bleomycin and, at relapse, bleomycin (15 mg/m2 weekly), etoposide (120 mg/m2 for five days) and cisplatin (20 mg/m2 for five days). In the subgroup of 20 patients who had received a cumulative etoposide dose of > 2000 mg/m2, two cases of acute myelomonocytic leukaemia occurred. For the 177 patients treated after 1983 to 1989 with first-line bleomycin, etoposide and cisplatin, the doses were adjusted according to risk category: 115 patients received standard doses (100 mg/m2 etopside for five days (cumulative dose, 2000 mg/m2), 20 mg/m2 cisplatin for five days, 15 mg/m2 bleomycin weekly). In 62 patients who received high- dose treatment consisting of etoposide (200 mg/m2 for five days; cumulative dose, 3000 mg/m2), cisplatin (40 mg/m2 for five days) and bleomycin (15 mg/m2 weekly), two cases of acute myeloblastic leukaemia (one in a patient with extragonal germ-cell tumour) and one case of myelodysplastic syndrome developed. The latencies after eto- poside treatment were 15 and 29 months for acute myeloblastic leukaemia and 68 months for the case of myelodysplastic syndrome. The expected number of de-novo cases of acute myeloid leukaemia was estimated from the leukaemia incidence reported in the Danish Cancer Registry for 1973–77. No leukaemias or dysplastic syndromes were observed among the 130 patients who had received ≤ 2000 mg/m2 etoposide, whereas five cases were seen among the 82 patients who had received > 2000 mg/m2 (p = 0. Although five cases of leukaemia and dysplastic syndrome were found in the 212 etoposide-treated patients, none was found in a previous cohort of 127 patients with germ-cell tumour treated with vinblastine and similar doses of cisplatin and bleomycin (p = 0. Bokemeyer and Schmoll (1993) assessed the risk for secondary neoplasms after therapy for germ-cell tumours in 1025 patients treated between 1970 and 1990 in Germany. Patients followed-up for longer than 12 months were eligible (1018 patients; 394 had seminomatous germ-cell tumours).
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Third asthmatic bronchitis test generic 5 mg montelukast otc, that at stake in these debates are not only the availability or withholding of a drug product asthma symptoms of purchase 10 mg montelukast overnight delivery, but also of the information and the avenues to knowledge surrounding a drug product asthma definition yay discount 10 mg montelukast with visa. Finally, and perhaps most evidently, the narrative of diabetes and Orinase in the 1960s and 1970s highlights the role of mutually-defning relationships between drugs and diseases in the regulation of therapeutic practice. Progress of Experiment: Science and Therapeutic Reform in the United States: 1900-1990, Cambridge: Cambridge University Press, 1997. Meinert and Susan Tonascia, Clinical Trials: Design, Conduct and Analysis, New York: Oxford University Press, 1986, pp. Sondik and Dana Gilbert, “Clinical Trials and Established Medical Practice: Two Examples,” in: Biomedical Innovation, ed. Greene Origins of the Tolbutamide Crisis The diffculty of regulating drugs for new diseases – or for diseases with changing boundaries – is central to this story. For the most part, as late as 1950, it was diffcult to be diagnosed with diabetes without exhibiting symptoms (popydipsia, polyuria, autophagia) or signs (glycosuria) of the disease. As I have written elsewhere, by the late 1960s the numerical diagnosis of “mild” or asymptomatic diabetes – detected on the basis of blood sugar levels alone – had become common in practice due in part to the infuence of oral hypoglycemics. The study would address three layered questions: (1) did tolbutamide have a favorable impact on vascular disease? By 1961, the study protocol was approved with seven different research sites; subjects with diabetes newly-diagnosed by screening laboratory tests were recruited and randomly assorted into four treatment arms. By 196 , fve more sites had been added, and by 1965 the full patient complement of 1,0 7 patients – roughly 00 to each arm – had been enrolled. Greene, Prescribing by Numbers: Drugs and the Defnition of Disease, Baltimore: Johns Hopkins, 2007. Tolstoi, “Treatment of diabetes with the ‘Free Diet’ during the last ten years,” in: Progress in Clinical Endocrinology, New York: Grune & Stratton, 1950, pp. Six years into the study, coordinators noticed that more deaths were appearing in the tolbutamide group than in any other group, including placebo, chiefy from cardiovascular causes. His frst response was to search for baseline differences might explain the difference in mortality. By that point, the study coordinator was convinced that even if tolbutamide was not harmful, there was no longer any possibility of demonstrating beneft; therefore the study arm could not be continued in an ethical fashion. Differences in medical management among the study’s sites, some thought, might account for the differences in mortality. Unfortunately for those concerned, the press leak occurred one day before their scheduled meeting. Crisis, Publicity, and the Regulation of Medical Information The tolbutamide controversy achieved publicity at a pivotal moment in the relationship between therapeutic research and its multiple publics. Marks, Interview with Christopher Klimt, May 16, 1984, as cited in Marks, Progress of Experiment, p. Greene were a period of crisis for the paternalistic model that had characterized relations between the American medical profession and its patient public for at least a century. Media coverage was consumed (as well as produced) in a divergent fashion by the industrial, professional, and consumer publics. That the frst public news of tolbutamide’s risks occurred not as a general press release or article in the science section of the newspaper, but as a report overthe fnancial newswire, is highly signifcant. The frst public for the tolbutamide controversy was the broader fnancial community surrounding the pharmaceutical industry, whose concern for the welfare of the drug itself – as a product – could be easily differentiated from a broader concern for the welfare of the diabetic patient. It is now common to see clinical trials results receive their frst publicity in the business sections of newspapers, but this was a relatively recent development. Over the second half of the twentieth century, as a smaller number of patented, brand-name, large-market drugs came to dominate the interests of the pharmaceutical industry, and as the industry grew to comprise a larger portion of the national economy, the impact of one clinical trial could affect the portfolios of thousands of investors. As a direct consequence of this transformation, by 1970 detailed information on ongoing clinical trials was broadly sought by fnancial analysts, traders, and individual investors. Knowledge of the progress of a clinical trial itself became a valuable currency which circulated through a private-sector information economy. Management of this knowledge became a priority for industry publicists and Upjohn execturives. For an analysis of the rising critique in the 1970s of the autonomous, paternalistic model of medical authority, see David Rothman, Strangers at the Bedside, A Story of How Law and Bioethics Transformed Medical Decision-Making, New York: Basic Books, 1991.
Rendell, 44 years: The list would also remind health workers about the proper channels for reporting an adverse event. Exhaust Collector electrode Detector Electrode housing Polarization leads Flame jet Hydrogen Air Column effluent Figure 29. Psychic derangements may appear when corticosteroids are used, ranging from euphoria, insomnia, mood swings, personality changes, and severe depression to frank psychotic manifestations.
Killian, 39 years: These considerations are important because most plasma drug concentration data available to the clinician are measured as total plasma concentration (bound plus unbound). Good personal hygiene with regular washing to remove crusts and accretions and avoid secondary infection. This choice of such equipment determines the quality of drugs, as each process step and stage of production takes place under the control of the equipment and, consequently, included in his software.
Inog, 36 years: Two types of immunity may be induced in response to an antigen, namely humoral immunity mediated by antigen-specific antibodies produced by B lymphocytes, and cell-mediated immunity produced by activated macrophages and cytotoxic T lymphocytes. Burrill & Company (2008) Analysis for pharmaceutical research and manufacturers of America. Determining whether or not to use a given regimen, at which stage of a disease – frst occurrence, relapse, metastasis – and in conjunction with what other modalities – surgery and/or radiotherapy – engendered an array of questions that contributed to the defnition of the feld of clinical cancer research as a new style of practice.
Sinikar, 43 years: In spite of an increas- ing number of reports on the use of various nanosystems for the skin, there is no clear consensus on the optimal size for skin penetration. The addition of better antiplatelet therapy is a bur- geoning area of research in acute coronary syndromes. Enduring changes to behaviour result from, or are influenced by, these interactions.
Deckard, 37 years: Ba- clofen is distributed widely (with only small amounts crossing the blood-brain barrier), undergoes minimal liver metabolism, and is excreted primarily unchanged in urine. Typical suicide genes include herpes simplex thymidine kinase and Escherichia coli cytosine deaminase. Zalcitabine accumulated preferentially in the liver and spleen of rats (Makabi-Panzu et al.
Giores, 48 years: Fascinating rhythm Catecholamines can cause the Purkinje fibers (an intricate web of fibers that carry electrical impulses into the ventricles) to fire spontaneously, possibly producing abnormal heart rhythms, such as premature ventricular contractions and fibrillation. Dipyridamole has been used in addition to aspirin therapy for the prevention and treatment of coronary thrombosis in patients with Kawasaki’s Disease. Is popular at raves and parties because many users compare it’s effects of that of ecstasy.
Marus, 59 years: Holloway Department of Materials Science and Engineering, University of Florida, Gainesville, Florida, U. Infrared Sources The most common infrared sources are electrically heated rods of the following types : (a) Sintered mixtures of the oxides of Zirconium (Zr), Yttrium (Y), Erbium (Er) etc. The methods of analysis (3) Chemical sanitizers shall be shall be those approved by the govern- equivalent in bactericidal action to a 2- ment agency or agencies having juris- minute exposure of 50 parts per million diction.
Wenzel, 60 years: Drug Administration shall be notified (10) The period during which the ap- in writing of the date on which the test plicant desires to introduce such food period begins as soon as it is deter- into interstate commerce, with a state- mined. One was studied by Walther Kroener (58), another by Ludwig Mayer (44), and the most recent case by Paul Reiter (58). These include members of the police and academia and some media commentators and think tanks.
Givess, 35 years: Conditions which may worsen already existing dementia include: » Electrolyte disturbances and dehydration. Although a causal relationship between methylxanthine use and necrotizing enterocolitis has not been established, patients being treated with caffeine citrate should be carefully monitored for the development of necrotising enterocolitis. Effcacy and acceptability of intranasal 17 beta-oestradiol for menopausal symptoms: Randomised dose–response study.
Bram, 24 years: Adverse Efects Elevaton of blood pressure, bradycardia, peripheral ischemia, arrhythmias, anxiety, transient headache, respiratory difculty, extravasaton necrosis at injecton site. Education points to consider » Focus on the positive aspects of therapy whilst being encouraging regarding the impact of the negative aspects and offer support to deal with them if they occur. Instead they found that while control group values rose, a statistically significant drop from preisolation conditions appeared in the experimental group.
Rhobar, 38 years: For instance, substructure c in Table 2 occurred in 247 of the 255 A2A antagonists, or 96. Some scientists have done so in their zeal to make the public aware of the dangerous tool which the techniques for manipulating behavior could become in the hands of totalitarian and other irresponsible practitioners. Synthetic opioids include buprenoprhine, methadone, pethidine, pentazocine and tramadol.
Ningal, 31 years: In: Singleton M, Murray R & Tinsley L (eds) Measuring different aspects of problem drug use: methodological developments. The instrument currently in use consists of a pressure cuff similar to that used in medical practice, but equipped with a side branch tube which connects to a tambour through a pressure reducer. The study was terminated at 19 and 22 months for male and female mice, respectively.
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References
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