1. Centers for Disease Control and Prevention [CDC]. Genital HPV Infection - Fact Sheet (2019). Available from: https://www.cdc.gov/std/hpv/stdfact-hpv.htm#:~:text=HPV%20can%20cause%20cervical%20and,after%20a%20person%20gets%20HPV.
2. CDC (2019). How Many Cancers Are Linked with HPV Each Year?.
3. Saraiya, M. (2015). US assessment of HPV types in cancers: Implications for current and 9-valent HPV vaccines. JNCI: Journal of the National Cancer Institute, 107(6).
4. U.S. Food & Drug Administration. FDA approves expanded use of Gardasil 9 to include individuals 27 through 45 years old (2018). Available from: https://www.fda.gov/news-events/press-announcements/fda-approves-expanded-use-gardasil-9-include-individuals-27-through-45-years-old.
5. American College Health Association (2021). Immunization Recommendations for College Students.