The market for community services for older persons.
D000368:Aged; D003153:Community Health Services / Q000458:organization & administration*; D003625:Data Collection; D006301:Health Services Needs and Demand; D006302:Health Services Research; D006699:Home Care Services / Q000458:organization & administration*; D006801:Humans; D011157:Population Dynamics; D014481:United States