Posada, D. H.; Acevedo, L. S. T.; Arredondo, M. V.; Vásquez, G. I. S. High-Risk Human Papillomavirus Infection and Associated Factors in the Anal Canal of HIV-Positive Patients in Medellín, 2017–2018. Rev. saúde pública 2020, 54, 93. https://doi.org/10.11606/s1518-8787.2020054001692.