1. Cancer facts and figures 2006;American Cancer Society,2006
2. Ries LAG, Melbert D, Krapcho M, Mariotto A, Miller BA, Feuer EJ, Clegg L, Horner MJ, Howlader N, Eisner MP, Reichman M, Edwards BK, editors. SEER Cancer Statistics Review, 1975–2004, National Cancer Institute. Bethesda, MD, http://seer.cancer.gov/csr/1975_2004/, based on November 2006 SEER data submission, posted to the SEER web site, 2007.
3. Increased use of colorectal cancer tests-United States, 2002 and 2004;Centers for Disease Control and Prevention;MMWR: Morbidity and Mortality Weekly,2006
4. American Cancer Society. Detailed Guide: Colon and Rectum Cancer. Available from: http://www.cancer.org/docroot/CRI/content/CRI_2_4_3X_Can_colon_and_rectum_cancer_be_found_early.asp. Accessed 24 January 2007.
5. Revision in American Cancer Society recommendations for the early detection of colorectal cancer;Levin;CA Cancer J Clin,1992