Sauder DN, Skinner RB, Fox TL, Owens ML. Topical imiquimod 5% cream as an effective treatment for external genital and perianal warts in different patient populations. Sex Transm Dis. 2003 Feb;30(2):124–8. doi: 10.1097/00007435-200302000-00006. PMID: 12567169.