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Efficacy of the bivalent HPV vaccine against HPV 16/18-associated precancer: long-term follow-up results from the Costa Rica Vaccine Trial.
Porras C, Tsang SH, Herrero R, Guillén D, Darragh TM, Stoler MH, Hildesheim A, Wagner S, Boland J, Lowy DR, Schiller JT, Schiffman M, Schussler J, Gail MH, Quint W, Ocampo R, Morales J, Rodríguez AC, Hu S, Sampson JN, Kreimer AR; Costa Rica Vaccine Trial Group. Porras C, et al. Lancet Oncol. 2020 Dec;21(12):1643-1652. doi: 10.1016/S1470-2045(20)30524-6. Lancet Oncol. 2020. PMID: 33271093 Free PMC article. Clinical Trial.