title: Morphine effects on human REM state, waking state and NREM sleep.
mesh_terms: D000328:Adult; D001683:Biological Clocks; D004569:Electroencephalography; D006801:Humans; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009021:Morphine Dependence; D010919:Placebos; D012890:Sleep / Q000187:drug effects*; D012892:Sleep Deprivation; D012895:Sleep, REM / Q000187:drug effects*; D013997:Time Factors; D014851:Wakefulness / Q000187:drug effects*
chemical_list: D010919:Placebos; D009020:Morphine