1. A first look at how Medicare Advantage benefits and premiums in individual enrollment plans are changing from 2008 to 2009 Publication: Washington, D.C. : AARP Public Policy Institute, c2009 Subject(s): Insurance Benefits -- trendsInsurance, Health -- trendsMedicare -- trendsCost Sharing -- trendsFee-for-Service PlansForecastingHealth Maintenance OrganizationsInsurance, Pharmaceutical ServicesMedical Savings AccountsMedicare -- statistics & numerical dataPreferred Provider OrganizationsPrivate SectorHumansUnited StatesCenters for Medicare & Medicaid Services (U.S.)