Adjuvant-containing control arms in pivotal quadrivalent human papillomavirus vaccine trials: restoration of previously unpublished methodology - Bourgeois, Florence; Hong, Kyungwan; Lee, Haeyoung; Shamseer, Larissa; Spence, O'Mareen; Jefferson, Tom; Doshi, Peter; Jones, Mark A., B.Sc., Ph.D. (BMJ Evidence-Based Medicine ; bmjebm ; 2019, 2020)