1. USA in 2050: Population Projected Over Five Decades;USA Today,2004
2. The crisis of the direct costs of health care;Blackwell,2005
3. The Coming Shortage of Surgeons;Williams,2009
4. Physician Supply and Demand: Projections to 2020 US Department of Health and Human Services Health Resources and Services Administration Bureau of Health Professions October 2006. Health Resources and Services Administration, Department of Health & Human Services. Physician Supply Projection, Tables 11 and 12. Available at: ftp://ftp.hrsa.gov/bhpr/workforce/PhysicianForecastingPaperfinal.pdf. Accessed April 13, 2009.
5. The Balanced Budget Act of 1997: a current look at its impact on patients and providers. Statement of Gail R. Wilensky, Chair Medicare Payment Advisory Commission. Before the Subcommittee on Health and Environment, Committee on Commerce, US House of Representatives, July 19, 2000. Available at: http://pages.stern.nyu.edu/∼jasker/BBA1.pdf. Accessed April 2, 2009.