Health care of the elderly: infinite promise in a world of limited resources.
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D000368:Aged; D003695:Delivery of Health Care / Q000191:economics / Q000639:trends*; D006801:Humans; D008019:Life Style; D008483:Medical Assistance / Q000191:economics / Q000639:trends; D006278:Medicare / Q000191:economics / Q000639:trends; D011445:Prospective Payment System / Q000639:trends; D011787:Quality of Health Care; D014481:United States