To date there have been no studies about the possible relationship between parotid cancer and chewing tobacco. There have been several in regards to smoking and one in 2008 found a 66 percent increased risk for those who ever smoked and more than double risk of tumors in current smokers.
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Interesting..... Lung, laryngeal, oropharyngeaI get, parotid seems like a stretch. I wonder how they factor out other lifestyle factors.
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