title: [Quadrivalent HPV vaccination in men is effective prevention against HPV infections and their associated anogenital lesions].
authors.affiliation: Horten-Zentrum für praxisorientierte Forschung und Wissenstransfer, Zürich. katja.woitzek@usz.ch
authors.forename: Katja
authors.initials: K
authors.lastname: Woitzek