1. National Institute of Cancer. Human papilloma virus (HPV) vaccines; 2021. Available from: https://www.cancer.gov/about-cancer/causes-prevention/risk/infectious-agents/hpv-vaccine-fact-sheet. Accessed July 4, 2022.
2. International Agency for Research on Cancer (IARC). Latest world cancer statistics; 2013. Available from: https://www.iarc.who.int/pressrelease/latest-world-cancer-statistics-global-cancer-burden-rises-to-14-1-million-new-cases-in-2012-marked-increase-in-breast-cancers-must-be-addressed/. Accessed July 4, 2022.
3. Federal Democratic Republic of Ethiopia Ministry of Health. Guideline for cervical cancer prevention and control in Ethiopia. 2015.
4. Bruni LB, Castellsague X. HPV and cancer. 2015.