PPOs: rejuvenating Medicare.
Wheeler
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D017046:Cost Savings; D018588:Fee-for-Service Plans / Q000191:economics / Q000458:organization & administration; D006297:Health Services Accessibility; D006278:Medicare / Q000191:economics / Q000458:organization & administration*; D011243:Preferred Provider Organizations / Q000191:economics / Q000458:organization & administration* / Q000592:standards / Q000706:statistics & numerical data; D011787:Quality of Health Care; D014481:United States