1. Use of 9-valent human papillomavirus (HPV) vaccine: updated HPV vaccination recommendations of the Advisory Committee on Immunization Practices;Petrosky;MMWR Morb Mortal Wkly Rep,2015
2. December 10, 2014 Approval letter—GARDASIL 9;Gruber,2014
3. Centers for Disease Control and Prevention. HPV Vaccine Information for Clinicians. U.S. Department of Health and Human Services. . Published December 20, 2016. [Accessed January 2018].
4. Use of a 2-dose schedule for human papillomavirus vaccination - updated recommendations of the Advisory Committee on Immunization Practices;Meites;MMWR Morb Mortal Wkly Rep,2016
5. Merck Sharp & Dohme Corp. Highlights of Prescribing Information. Gardasil®9 (Human Papillomavirus 9-valent Vaccine, Recombinant). Merck & Co., Inc. . Published 2014. Updated February 2018 [accessed April 2018].