Kay, D C Morphine-like insomnia from heroin in nondependent human addicts. [electronic resource] - British journal of clinical pharmacology Feb 1981 - 159-69 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0306-5251 Standard No.: 10.1111/j.1365-2125.1981.tb01120.x doi Subjects--Topical Terms: AdultArousal--drug effectsHeroin--pharmacologyHumansMaleMorphine--pharmacologyOpioid-Related Disorders--physiopathologySleep Initiation and Maintenance Disorders--chemically inducedSleep, REM--drug effects