The price of choice: managed care in America.
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D003953:Diagnosis-Related Groups; D017048:Health Care Costs; D006279:Health Maintenance Organizations; D006291:Health Policy; D006297:Health Services Accessibility; D008329:Managed Care Programs / Q000191:economics / Q000458:organization & administration* / Q000639:trends; D011243:Preferred Provider Organizations; D014481:United States