Foster, R W Trials of the bronchodilator activity of the xanthine analogue SDZ MKS 492 in healthy volunteers during a methacholine challenge test. [electronic resource] - European journal of clinical pharmacology 1993 - 227-34 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0031-6970 Standard No.: 10.1007/BF00315388 doi Subjects--Topical Terms: Administration, InhalationAdministration, OralAdultAnimalsBronchial Provocation TestsBronchoconstriction--drug effectsBronchodilator Agents--administration & dosageChromatography, High Pressure LiquidDouble-Blind MethodFemaleHumansMaleMethacholine ChlorideMiddle AgedPlethysmography, Whole BodyPurinones--administration & dosage