1. Cancer statistics, 2015;Siegel;CA Cancer J Clin,2015
2. http://www.npr.org/sections/health-shots/2015/11/13/455915904/preventable-colon-cancer-deaths-cost-the-economy-6-4-billion.
3. Surveillance, Epidemiology, and End Results (SEER) Program Database: Mortality—All COD, Aggregated With State, Total U.S. (1969–2010). National Cancer Institute, DCCPS, Surveillance Research Program, Cancer Statistics Branch. Underlying mortality data provided by NCHS; 2013 [released April 2013].
4. Surveillance, Epidemiology and End Results (SEER) Program SEER*Stat Database: NAACCR Incidence—CiNA Analytic File, 1995–2010, for Expanded Races, Custom File With County, ACS Facts and Figures projection Project, North American Association of Central Cancer Registries; 2013.
5. http://seer.cancer.gov/statfacts/html/colorect.html.