title: PPOs consider the Medicare market.
authors.forename: M
authors.initials: M
authors.lastname: Robinson
mesh_terms: D006801:Humans; D006278:Medicare / Q000331:legislation & jurisprudence / Q000458:organization & administration*; D011243:Preferred Provider Organizations / Q000191:economics* / Q000331:legislation & jurisprudence; D014481:United States