1. Regional PPOs in Medicare: what are the prospects? How do they contain rising costs? Publication: [Washington, D.C.] : AcademyHealth, [2007] Subject(s): Cost ControlMedicare -- economicsMedicare -- legislation & jurisprudencePreferred Provider Organizations -- trendsRegional Health PlanningForecastingModels, StatisticalPreferred Provider Organizations -- organization & administrationHumansUnited States