title: L-Tryptophan: effects on sleep.
mesh_terms: D000818:Animals; D002986:Clinical Trials as Topic; D004569:Electroencephalography; D006801:Humans; D008297:Male; D010919:Placebos; D051381:Rats; D012890:Sleep / Q000187:drug effects*; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy; D013997:Time Factors; D014364:Tryptophan / Q000494:pharmacology* / Q000627:therapeutic use
chemical_list: D010919:Placebos; D014364:Tryptophan