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2 World Health Organization Regional Office for Europe. Questions and answers about human papillomavirus (HPV). January 2020. Available at: https://apps.who.int/iris/handle/10665/360807. Accessed 6 June 2023.
3 Centers for Disease Control and Prevention. Sexually Transmitted Infections Treatment Guidelines 2021. https://www.cdc.gov/std/treatment-guidelines/hpv.htm. Accessed 29 June 2023.
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6 National Cancer Institute. Cervical Cancer Causes, Risk Factors, and Prevention. https://www.cancer.gov/types/cervical/causes-risk-prevention. Accessed 8 June 2023.
7 ICO HPV Information Centre. Singapore human Papillomavirus and Related Cancers, Fact Sheet 2021. https://hpvcentre.net/statistics/reports/SGP_FS.pdf. Accessed 6 December 2022.
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14 Centers for Disease Control. Answering Parents’ Questions about HPV Vaccination. Available at: https://www.cdc.gov/hpv/hcp/answering-questions.html. Accessed 21 December 2023.
15 World Health Organization Regional Office for Europe. Questions and answers about HPV vaccination Information for parents and caregivers. Available at: https://www.euro.who.int/__data/assets/pdf_file/0009/356841/Q-and-A_HPV_Parents_EN.pdf. Accessed 17 February 2023.
16 World Health Organization. Safety of HPV Vaccines. https://www.who.int/groups/global-advisory-committee-on-vaccine-safety/topics/human-papillomavirus-vaccines/safety. Accessed 28 April 2023.