title: A psychological study of the effects of surgery on eighty-six elderly patients.
mesh_terms: D000368:Aged; D000758:Anesthesia / Q000009:adverse effects; D002540:Cerebral Cortex / Q000187:drug effects; D003071:Cognition; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D008568:Memory; D001523:Mental Disorders / Q000209:etiology*; D010551:Personality; D010552:Personality Assessment; D011581:Psychological Tests; D013514:Surgical Procedures, Operative / Q000009:adverse effects*