Relationship of residence, education, and socialization to cognitive tasks in normal people of advanced old age.
D000368:Aged; D003071:Cognition; D004522:Educational Status; D005260:Female; D006707:Homes for the Aged; D006801:Humans; D007899:Leisure Activities; D007902:Length of Stay; D008297:Male; D011581:Psychological Tests; D012111:Residence Characteristics; D012737:Sex Factors; D012923:Social Class; D012951:Socialization