title: Nicotinic acid in the treatment of chronic hospitalized schizophrenic patients: a placebo-controlled clinical study.
mesh_terms: D000328:Adult; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009536:Niacinamide / Q000627:therapeutic use; D009539:Nicotinic Acids / Q000627:therapeutic use*; D010919:Placebos; D012559:Schizophrenia / Q000188:drug therapy*
chemical_list: D009539:Nicotinic Acids; D010919:Placebos; D009536:Niacinamide