The changing elderly market.
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D000203:Activities of Daily Living; D000368:Aged; D002908:Chronic Disease / Q000191:economics; D006285:Health Planning / Q000639:trends; D006295:Health Resources; D006301:Health Services Needs and Demand / Q000639:trends*; D006299:Health Services for the Aged / Q000639:trends*; D006304:Health Status; D006801:Humans; D006278:Medicare; D011203:Poverty; D014481:United States