1. Ferlay J, Shin HR, Bray F, Forman D, Mathers C, & Parkin DM. (2010). GLOBOCAN 2008, cancer incidence and mortality worldwide: IARC cancer base no. 10 [Internet]. Lyon, France: International Agency for Research on Cancer. Available at: http://globocan.iarc.fr . Accessed 22 June 2011.
2. Howlader N, Noone AM, & Krapcho M, et al (Eds). (2011). SEER cancer statistics review, 1975–2008. Bethesda, MD: National Cancer Institute. http://seer.cancer.gov/csr/1975_2008/ .
3. Kochanek, K. D., Xu, J. Q., Murphy, S. L., et al. (2011). Deaths: Preliminary data for 2009. Natl Vital Stat Rep, 59(4), 1–68.
4. Xu, J. Q., Kochanek, K. D., Murphy, S. L., & Tejada-Vera, B. (2010). Deaths: final data for 2007. Natl Vital Stat Rep, 58(19), 1–136.
5. Singh GK, Miller BA, Hankey BF, & Edwards BK. (2003). Area socioeconomic variations in US cancer incidence, mortality, stage, treatment, and survival, 1975–1999. NCI Cancer Surveillance Monograph Series, No. 4. Bethesda, MD: National Cancer Institute. NIH Publ No. 03-5417.