Managed care ... many people in Medicare HMOs apparently are voting with their feet.
D000368:Aged; D014487:Centers for Medicare and Medicaid Services, U.S.; D003625:Data Collection; D006279:Health Maintenance Organizations / Q000592:standards / Q000706:statistics & numerical data*; D006801:Humans; D006278:Medicare / Q000458:organization & administration* / Q000592:standards; D017060:Patient Satisfaction; D014481:United States