title: Antidepressant drug levels and clinical response.
mesh_terms: D000328:Adult; D000368:Aged; D000639:Amitriptyline / Q000097:blood* / Q000627:therapeutic use; D003863:Depression / Q000188:drug therapy*; D004351:Drug Resistance; D006801:Humans; D008875:Middle Aged
chemical_list: D000639:Amitriptyline