TY - GEN AU - Donovan,Basil AU - Grulich,Andrew E TI - The quadrivalent HPV vaccine is effective prophylaxis against HPV-related external genital lesions in young men SN - 1473-6810 PY - 2011///1228 N1 - Publication Type: Comment; Journal Article UR - https://doi.org/10.1136/ebm1405 ER -