Activity patterns and leisure concepts among the elderly.
D000203:Activities of Daily Living; D000223:Adaptation, Psychological; D000368:Aged; D001294:Attitude to Health; D005260:Female; D006798:Housing; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D011581:Psychological Tests; D014481:United States