title: Depression refractive to treatment.
mesh_terms: D000368:Aged; D000928:Antidepressive Agents / Q000627:therapeutic use; D003863:Depression / Q000628:therapy*; D004565:Electroconvulsive Therapy; D005260:Female; D006801:Humans; D011612:Psychosurgery
chemical_list: D000928:Antidepressive Agents