1. George, M. G., Tong, X., McGruder, H., Yoon, P., Rosamond, W., Winquist, A., et al. (2009). Centers for disease control and prevention (CDC). Paul Coverdell National Acute Stroke Registry Surveillance—four states, 2005–2007. MMWR. Surveillance Summaries, 58(7), 1–23.
2. Karch, D. L., Dahlberg, L. L., & Patel, N. (2010). Surveillance for violent deaths—National violent death reporting system, 16 States, 2007. MMWR. Surveillance Summaries, 59(4), 1–50.
3. The Secretary’s Advisory Committee on National Health Promotion and Disease Prevention Objectives for 2020. (2008). Phase I Report: Recommendations for the Framework and Format of Healthy People 2020. http://www.healthypeople.gov/hp2020/advisory/PhaseI/PhaseI.pdf . Accessed 23 August, 2010.
4. Gold, M. R., Siegel, J. E., Russell, R. B., & Weinstein, M. C. (1996). Cost-effectiveness in health and medicine. New York: Oxford University Press.
5. Chiang, C. L. (1984). Statistical inference regarding life table functions. In C. L. Chiang (Ed.), The life table and its applications (pp. 153–167). Malabar, FL: Robert E. Krieger Publishers.