1. Snuff dipping and oral cancer among women in the southern United States;Winn;N Engl J Med,1981
2. Toxic and carcinogenic agents in dry and moist snuff;Hoffman;J Natl Cancer Inst,1987
3. Mutagenic activity in smokeless tobacco products sold in the U.S.A;Guttenplan;Carcinogenesis,1987
4. Induction of oral cavity tumors in F344 rats by tobacco-specific nitrosamines and snuff;Hecht;Cancer Res,1986
5. Environmental carcinogens: polycyclic aromatic hydrocarbons,1983