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. 2019 Jul 4;12:1951–1967. doi: 10.2147/IDR.S178381

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© 2019 Toh et al.

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Timeline of pivotal Phase III HPV vaccine trials and licensure/registration of the HPV vaccines.

Notes: ^aTwo-dose schedule separated by six months to adolescents aged <15 years. ^bData from Iversen et al.⁵⁷

Abbreviations: 4vHPV, quadrivalent HPV vaccine; 2vHPV, bivalent HPV vaccine; 9vHPV, nonavalent HPV vaccine; FDA, The U.S. Food and Drug Administration; HPV, human papillomavirus; EU, European Union; VLP, virus-like particle.