1. The Henry J. Kaiser Family Foundation. Fact Sheet: Medicare: Medicare and Prescription Drugs. Available at: http://www.kff.org/medicare/upload/Medicare-and-Prescription-Drugs-Fact-Sheet-Fact-Sheet.pdf;
2. April 2003. Accessed 12/10/08.
3. Medicare Chartbook;Cubanski,2005
4. Estimates of Medicare Beneficiaries' Out-of-Pocket Drug Spending in 2006. Modeling the Impact of MMA;Mays,2004
5. Examining Sources of Coverage among Medicare Beneficiaries: Supplemental Insurance, Medicare Advantage, and Prescription Drug Coverage. Findings from the Medicare Current Beneficiary Survey, 2006;Cubanski,2008