title: The shifting healthcare marketplace: purchasers, not MCOs, are the powers that be.
authors.forename: C H
authors.initials: CH
authors.lastname: Coulter
mesh_terms: D018166:Health Care Reform / Q000191:economics*; D006801:Humans; D007348:Insurance, Health / Q000191:economics*; D008329:Managed Care Programs / Q000191:economics*; D010820:Physicians / Q000191:economics*; D014481:United States