1. WellPoint (2002). Wellpoint by Design: Annual Report. Thousand Oaks, CA: Wellpoint. Online at http://www.wellpoint.com/investor_info/annual_reports/
2. Life Span, Health, Savings, and Productivity
3. Collins, S. R., Davis, K. and Lambrew, J. M. (2004). Health Care Reform Returns to the National Agenda: the 2004 Presidential Candidates' Proposals. New York: The Commonwealth Fund. Online at www.cmwf.org
4. Trigger points;Thompson;The Washington Post Magazine,1998
5. Prospective health care planning: can it transform health care?;Snyderman;Enabling Prospective Health Care: 2002 Duke Private Sector Conference,2002