Institute of Medicine. (2003). Crossing the quality chasm: A new health system for the 21st century. Washington, DC: National Academy Press.
National Cancer Institute. (2004). Plans and priorities for cancer research: Spotlight on research: The interface of aging and cancer. Retrieved February 2, 2006, from http://plan2004.cancer.gov/discovery/aging.htm
National Center for Health Statistics. (2005). Health, United States, 2005: With chartbook on trends in the health of Americans. Retrieved February 16, 2006, from http://www.cdc.gov/nchs/data/hus/hus05.pdf
U.S. Department of Health and Human Services. (2002). Projected supply, demand, and shortages of registered nurses: 2000-2020. Retrieved February 2, 2006, from ftp://ftp.hrsa.gov/bhpr/nationalcenter/rnproject.pdf