The biological constraints on human aging: implications for health policy.
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D002908:Chronic Disease; D003625:Data Collection; D006262:Health; D006291:Health Policy; D006304:Health Status; D006801:Humans; D008017:Life Expectancy; D008136:Longevity; D009017:Morbidity; D014481:United States