NBDE Review Questions: Quiz 442 May 12, 2016 by admin Leave a Comment a. Oral cancer most frequently occurs on the floor of the mouth. b. Oral cancer occurs least frequently on the lateral borders of the tongue. c. Oral cancer occurs least frequently on the floor of the mout d. Alcohol use and smoking tobacco exacerbate each other’s carcino- genic effect e. There is no link between tobacco smoking and alcohol use in carcino- genicity. Δ
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