PT - JOURNAL ARTICLE AU - Donovan, Basil AU - Grulich, Andrew E TI - The quadrivalent HPV vaccine is effective prophylaxis against HPV-related external genital lesions in young men AID - 10.1136/ebm1405 DP - 2011 Oct 01 TA - Evidence Based Medicine PG - 157--158 VI - 16 IP - 5 4099 - http://ebm.bmj.com/content/16/5/157.short 4100 - http://ebm.bmj.com/content/16/5/157.full SO - Evid Based Med2011 Oct 01; 16