Alberta Health Services. (2013, October). Anal Canal Cancer Clinical Practice Guideline GI-001. (version 4 Edition). Retrieved from: http://www.albertahealthservices.ca/hp/if-hp-cancer-guide-gi001-anal-canal.pdf.
American Cancer Society. (2014, April 9). Anal Cancer. Retrieved from: http://www.cancer.org/acs/groups/cid/documents/webcontent/003083-pdf.pdf.
American Society of Clinical Oncology. (2014, March). Anal Cancer. Retrieved from: http://www.cancer.net/cancer-types/anal-cancer.
BC Cancer Agency (BCCA). (2012). Cancer Management Guidelines: Anus. Retrieved from: http://www.bccancer.bc.ca/health-professionals/professional-resources/cancer-management-guidelines/gastrointestinal/anus#.
Czito BG, Ahmed S, Kalady M, Eng C. Cancer of the Anal Region. DeVita VT Jr, Lawrence TS, Rosenberg SA. (2015). Cancer: Principles and Practice of Oncology. (10th Edition). Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. 61:842-856.
National Comprehensive Cancer Network. (2015). Anal Carcinoma. (version 2 Edition). Retrieved from: http://www.nccn.org/professionals/physician_gls/f_guidelines.asp#site.
Penn Medicine. (2015, February 13). Anal Cancer: The Basics. University of Pennsylvania. Retrieved from: http://www.oncolink.org/includes/print_article.cfm?Page=2&id=9497§ion=cancer_types.×