title: Treatment-resistant depression in the elderly.
mesh_terms: D000368:Aged; D000375:Aging; D000928:Antidepressive Agents / Q000009:adverse effects / Q000378:metabolism / Q000627:therapeutic use*; D001798:Blood Proteins / Q000378:metabolism; D003863:Depression / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*; D004305:Dose-Response Relationship, Drug; D005853:Geriatrics; D006321:Heart / Q000187:drug effects; D006801:Humans; D007024:Hypotension, Orthostatic / Q000139:chemically induced; D007700:Kinetics; D008996:Monoamine Oxidase Inhibitors / Q000627:therapeutic use; D010349:Patient Compliance; D011613:Psychotherapy
chemical_list: D000928:Antidepressive Agents; D001798:Blood Proteins; D008996:Monoamine Oxidase Inhibitors