1. Adams, M., & Berger, D. (2007, February 7). HPV Vaccine Texas Tyranny (comic). Retrieved September 24, 2007, from http://www.naturalnews.com/021571.html
2. American Cancer Society. (n.d.). What Are the Key Statistics About Cervical Cancer? Retrieved July 17, 2018, from https://www.cancer.org/cancer/cervical-cancer/about/key-statistics.html
3. Arizona Senate Bill 1093. (2007). Arizona Senate Bill 1093. Retrieved November 24, 2007, from http://www.azleg.gov
4. Auge, K. (2007, January 17). Bill seeks proof of HPV shot or opt-out Colo. schools would require paperwork. Some say mandating the vaccine to prevent cervical cancer will encourage teen sex. Rep. May says the shot would be optional. The Denver Post, p. A1.
5. Autism Society of America. (2004). ASA Statement on May 2004 IOM Report on Vaccines and Autism. Retrieved October 24, 2007, from http://www.autism-society.org/site/PageServer?pagename=mmrvaccine