title: Medicare+EvenMoreChoice: U.S. encourages PPO option.
authors.forename: Frank
authors.initials: F
authors.lastname: Diamond
mesh_terms: D000368:Aged; D014487:Centers for Medicare and Medicaid Services, U.S.; D004608:Eligibility Determination; D006801:Humans; D020398:Medicare Part C / Q000191:economics / Q000331:legislation & jurisprudence*; D011243:Preferred Provider Organizations / Q000191:economics / Q000331:legislation & jurisprudence / Q000458:organization & administration*; D011907:Rate Setting and Review; D014481:United States