^ Jump up to: a b Tan, Min; Gareth Jones; Guangjian Zhu; Jianping Ye; Tiyu Hong; Shanyi Zhou; Shuyi Zhang; Libiao Zhang (October 28, 2009). Hosken, David, ed. "Fellatio by Fruit Bats Prolongs Copulation Time". PLoS ONE. 4 (10): e7595. Bibcode:2009PLoSO...4.7595T. doi:10.1371/journal.pone.0007595. PMC 2762080. PMID 19862320. Retrieved October 28, 2009.

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Doctors used to think that human papillomavirus (HPV), the most common sexually transmitted infection in the United States, couldn’t affect the mouth. But recent research has them rethinking this notion. Scientists have now shown that the same high-risk strains of HPV that lead to cervical cancer can also be transmitted by oral sex and potentially cause head, neck, and throat cancer, as well. 

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