Beneficiaries remain vulnerable to sales agents' marketing of Medicare Advantage plans. Running title: Beneficiaries remain vulnerable to sales agents' marketing of Medicare Advantage plans - 1 online resource (iii, 38 pages) : illustrations "March 2010." "OEI-05-09-00070." CRDP Project record. Includes bibliographical references. Subjects--Corporate Names: Centers for Medicare & Medicaid Services (U.S.)--Rules and practice--Evaluation.United States. Medicare Improvements for Patients and Providers Act of 2008. Subjects--Topical Terms: Medicare.Health insurance agents--Corrupt practices--United States. GPO Item No.: 0445-B-07 (online) Gov. Doc. Class. No.: HE 1.75:OEI-05-09-00070 Report. No.: OEI-05-09-00070