1. Centers for Disease Control and Prevention; U.S. Cancer Statistics Working Group. United States Cancer Statistics: 1999-2005 Incidence and Mortality Web-based Report. Atlanta, GA: Department of Health and Human Services, Centers for Disease Control and Prevention, and National Cancer Institute; 2009. Available at: http://www.cdc.gov/uscs (accessed July 9, 2009).
2. American Cancer Society. Cancer Facts and Figures 2009. Available at: www.cancer.org (accessed July 9, 2009).
3. Horner MJ, Ries L, Krapcho M, et al, editors. SEER Cancer Statistic Review, 1975-2006. Bethesda, MD: National Cancer Institute. Available at: http://seer.cancer.gov/csr/1975_2006 (accessed July 3, 2009).
4. Births: preliminary final data for 2007;Hamilton;Natl Vital Stat Rep,2009
5. Motivation for parenthood after cancer: a review;Schover;J Natl Cancer Inst Monogr,2005