Mortimer, O Dextromethorphan: polymorphic serum pattern of the O-demethylated and didemethylated metabolites in man. [electronic resource] - British journal of clinical pharmacology Feb 1989 - 223-7 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0306-5251 Standard No.: 10.1111/j.1365-2125.1989.tb05354.x doi Subjects--Topical Terms: AdultAutomobile DrivingDebrisoquin--metabolismDextromethorphan--analogs & derivativesDextrorphan--bloodDouble-Blind MethodHumansLevorphanol--analogs & derivativesNoscapine--metabolismPhenotypeRandom Allocation