Demographics of aging populations--key issues.
D000368:Aged; D003710:Demography; D005260:Female; D006801:Humans; D008017:Life Expectancy; D008297:Male; D009026:Mortality; D011158:Population Growth; D012737:Sex Factors; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014481:United States