Prevalence and persistence of HPV-16 molecular variants in the anal canal of men: the HIM study - Goncalves, Milena Giulia; Ferreira, Matthew Thomas; Lopez, Rossana Veronica Mendoza; Ferreira, Silvaneide; Sirak, Bradley; Baggio, Maria Luiza; Lazcano-Ponce, Eduardo; Nyitray, Alan G; Giuliano, Anna R; Villa, Luisa Lina (Journal of clinical virology, 2022)