I am sure this study will show up in the Oral Cancer in the News section of the main site, but thought I'd highlight this Bloomberg News article that just moved on the wire:

[quote] BC-POT-SMOKING-ORAL-SEX-CANCER-STUDY
Pot Smoking, Oral Sex Linked to Virus-Related Cancer in Study
c.2008 Bloomberg News
By Elizabeth Lopatto
March 11 (Bloomberg) -- People who didn't smoke cigarettes and did smoke pot for at least five years were 11 times more likely to develop head and neck cancer from the sexually transmitted virus that causes cervical cancer, scientists found.

Having more sexual partners, participating in casual sex at least once and having had at least one sexually transmitted disease were also risk factors for cancers caused by the human papillomavirus, or HPV. Patients whose cancer tested positive for HPV were also likelier to be white, married, college- educated people who made $50,000 a year or more.

These patients also tended to be younger than patients whose oral cancer wasn't caused by HPV, according to a study of 240 patients. The different risk factors mean that HPV-caused cancers should be considered separate maladies, even though the location is the same, the researchers said in the March 12 Journal of the National Cancer Institute.