Male circumcision, penile human pappilamavirus infection, and cervical cancer in female partners - Castellasague, Xavier; Bosch, F. Xavier; Muñoz, Nubia; Meijer, Chris J. L. M.; Shah, Keerti V.; Sanjose, Silvia de; Eluf Neto, José; Ngelangel, Corazon A.; Chichareon, Saibua; Smith, Jennifer S.; Herrero, Rolando; Franceschi, Silvia (New England Journal of Medicine, 2002)