1. American Cancer Society. (2016). Cervical cancer statistics. Retrieved March 22, 2016 from http://www.cancer.org/cancer/cervicalcancer/detailedguide/cervical-cancer-key-statistics .
2. Centers for Disease Control and Prevention. (2014). Cervical cancer. Retrieved August 23, 2014 from http://www.cdc.gov/cancer/cervical/statistics/trends.htm .
3. American Cancer Society. (2013). Cervical cancer. Retrieved August 24, 2014 from http://www.cancer.org/cancer/cervicalcancer/detailedguide/cervical-cancer-prevention .
4. Center for Disease Prevention and Control. (2012). BRFSS annual survey data, survey data and documentation, 2012 survey data, survey data information. Retrieved October 13, 2014 from http://www.cdc.gov/brfss/about/about_brfss.htm .
5. Harlan, L., Bernstein, A., & Kessler, L. (1991). Cervical cancer screening: Who is not screened and why. American Journal of Public Health, 81(7), 885–890.