TY - BOOK ID - 136795046 TI - Medicare Advantage : enrollment increased from 2010 to 2011 while premiums decreased and benefit packages were stable : report to congressional requesters. PY - 2011 PB - [Washington, D.C.] : U.S. Govt. Accountability Office, DB - UniCat KW - Medicare. KW - Medicare beneficiaries. KW - Medicare beneficiaries KW - Economic aspects. UR - https://www.unicat.be/uniCat?func=search&query=sysid:136795046 AB - ER -