Watch out for Medicare HMO disenrollment as high as 42%.
D003363:Cost Control; D003625:Data Collection; D004465:Economic Competition; D018588:Fee-for-Service Plans / Q000706:statistics & numerical data; D006279:Health Maintenance Organizations / Q000191:economics / Q000706:statistics & numerical data*; D006297:Health Services Accessibility; D006801:Humans; D006278:Medicare / Q000706:statistics & numerical data*; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data*; D014481:United States