Sexuality in aging: a study of a group of 300 elderly men and women.
D000368:Aged; D000375:Aging; D003075:Coitus; D005260:Female; D006801:Humans; D008297:Male; D008418:Masturbation; D008875:Middle Aged; D012723:Sex; D012725:Sexual Behavior; D012959:Socioeconomic Factors