Impact of the elderly. The unique elderly market requires flexible health care services.
D000203:Activities of Daily Living; D000368:Aged; D005381:Financing, Organized / Q000639:trends; D006301:Health Services Needs and Demand / Q000639:trends; D006299:Health Services for the Aged / Q000458:organization & administration*; D006739:Hospital Administration; D006801:Humans; D014481:United States