Drugs in depressive illness.
D000639:Amitriptyline / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003863:Depression / Q000188:drug therapy*; D005163:Factor Analysis, Statistical; D006801:Humans; D010546:Perphenazine / Q000627:therapeutic use*; D010919:Placebos
D010919:Placebos; D000639:Amitriptyline; D010546:Perphenazine