title: Depression in the elderly: research directions in psychopathology, epidemiology, and treatment.
mesh_terms: D000368:Aged; D000929:Antidepressive Agents, Tricyclic / Q000627:therapeutic use; D003431:Cross-Cultural Comparison; D003704:Dementia / Q000523:psychology; D003866:Depressive Disorder / Q000188:drug therapy / Q000453:epidemiology / Q000523:psychology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012106:Research; D012917:Social Adjustment; D006113:United Kingdom; D014481:United States
chemical_list: D000929:Antidepressive Agents, Tricyclic