title: Placebo as prognosticator.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000188:drug therapy*; D008875:Middle Aged; D010546:Perphenazine / Q000008:administration & dosage* / Q000009:adverse effects; D010919:Placebos / Q000008:administration & dosage* / Q000009:adverse effects
chemical_list: D010919:Placebos; D010546:Perphenazine