Health maintenance organizations and the elderly: the potential for vertical integration of geriatric care.
D000368:Aged; D000554:Ambulatory Care Facilities / Q000706:statistics & numerical data; D003191:Comprehensive Health Care; D005260:Female; D006279:Health Maintenance Organizations / Q000592:standards*; D006299:Health Services for the Aged / Q000458:organization & administration*; D006761:Hospitals / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008389:Marketing of Health Services; D006278:Medicare; D011785:Quality Assurance, Health Care; D014481:United States