1. World Cancer Research Fund International. Colorectal cancer statistics. Available from: URL: http://wcrf.org/int/cancer-facts-figures/data-specific-cancers/colorectal-cancer-statistics
2. World Cancer Research Fund. Colorectal Cancer 2011 Report. Food, Nutrition, Physical Activity, and the Prevention of Colorectal Cancer, 2011. Available from: URL: https://free-ebooks.com/ebooks/colorectal-cancer-2011-report-food-nutrition-physical-activity-and-the-prevention-of-colorectal-cancer/
3. American Cancer Society. Cancer Statistics Center. Available from: URL: https://cancerstatisticscenter.cancer.org/#!/
4. Colorectal cancer
5. Cancer, Physical Activity, and Exercise