Objective evidence of mental effects of heroin, morphine and placebo in normal subjects.
D003932:Heroin / Q000494:pharmacology*; D006801:Humans; D008606:Mental Processes / Q000494:pharmacology*; D009020:Morphine / Q000494:pharmacology*
D003932:Heroin; D009020:Morphine
DIACETYLMORPHINE/pharmacology; MENTAL PROCESSES/pharmacology; MORPHINE/pharmacology