Male circumcision and prevalence of genital human papillomavirus infection in men: a multinational study - Albero, Ginesa; Villa, Luisa L.; Lazcano-Ponce, Eduardo; Fulp, William; Papenfuss, Mary R.; Nyitray, Alan G.; Lu, Beibei; Castellsagué, Xavier; Abrahamsen, Martha; Smith, Danélle; Bosch, F. Xavier; Salmerón, Jorge; et al. (BMC Infectious Diseases, 2013)