Demography of aging and needs for special services.
D000368:Aged; D000375:Aging; D003710:Demography; D005260:Female; D006176:Gynecology; D006801:Humans; D008297:Male; D008593:Menopause; D008875:Middle Aged; D009774:Obstetrics; D011158:Population Growth; D011584:Psychology; D012744:Sex Ratio; D014481:United States; D000078329:Workforce