The uses of epidemiology in the study of the elderly. Report of a WHO Scientific Group on the Epidemiology of Aging.
D000368:Aged; D000375:Aging; D004185:Disability Evaluation; D004812:Epidemiologic Methods; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D008017:Life Expectancy; D008019:Life Style; D008136:Longevity; D008875:Middle Aged; D009017:Morbidity; D012306:Risk; D014944:World Health Organization