title: The action of L-dopa on schizophrenic patients (a preliminary report).
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D004295:Dihydroxyphenylalanine / Q000494:pharmacology* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos; D012559:Schizophrenia / Q000188:drug therapy*
chemical_list: D010919:Placebos; D004295:Dihydroxyphenylalanine