Oral sex linked to mouth cancer % L- W. M$ E7 b; s os.tvboxnow.com0 N$ a" g" F3 z5 p9 @8 G5 d. B
3 w* q/ B; c4 wScieintists looked at tissue samples from patients + m$ [' w' f* bSome cases of mouth cancer could be caused by a virus contracted during oral sex, scientists have warned.5 u. _/ a: P) c
4 F z1 H! ~5 j: h* b7 @3 ?* DWriting in New Scientist magazine, US researchers said the human papilloma virus, which causes most cervical cancers, may also cause oral tumours.公仔箱論壇; X' F, B$ S( n& ~
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