• 1
    Results from the 2009 National Survey on Drug Use and Health: Volume I. Summary of National Findings (Office of Applied Studies, NSDUH Series H-38A, HHS Publication No. SMA 10-4856 Findings). Substance Abuse and Mental Health Services Administration, 2010.
  • 2
    McClave A, Rock V, Thorne S, et al. State-specific prevalence of cigarette smoking and smokeless tobacco use among adults-United States, 2009. JAMA-J Am Med Assoc 2011; 305: 14346.
  • 3
    Tomar SL. Trends and patterns of tobacco use in the United States. Am J Med Sci 2003; 326: 24854.
  • 4
    Cullen JW, Blot W, Henningfield J, et al. Health consequences of using smokeless tobacco: summary of the Advisory Committee's report to the Surgeon General. Public Health Rep 1986; 101: 35573.
  • 5
    Smokeless tobacco and some tobacco-specific N-nitrosamines. IARC Monogr Eval Carcinog Risks Hum 2007; 89: 1592.
  • 6
    National Cancer Institute fact sheet smokeless tobacco and cancer, vol. 2010. Bethesda, MD: National Cancer Institute, 2010, Accesed on: September 26, 2012.
  • 7
    Winn DM, Blot WJ, Shy CM, et al. Snuff dipping and oral cancer among women in the southern United States. N Engl J Med 1981; 304: 7459.
  • 8
    Stockwell HG, Lyman GH. Impact of smoking and smokeless tobacco on the risk of cancer of the head and neck. Head Neck Surg 1986; 9: 10410.
  • 9
    Blot WJ, McLaughlin JK, Winn DM, et al. Smoking and drinking in relation to oral and pharyngeal cancer. Cancer Res 1988; 48: 32827.
  • 10
    Lewin F, Norell SE, Johansson H, et al. Smoking tobacco, oral snuff, and alcohol in the etiology of squamous cell carcinoma of the head and neck: a population-based case-referent study in Sweden. Cancer 1998; 82: 136775.
  • 11
    Schildt EB, Eriksson M, Hardell L, et al. Oral snuff, smoking habits and alcohol consumption in relation to oral cancer in a Swedish case-control study. Int J Cancer 1998; 77: 3416.
  • 12
    Boffetta P, Aagnes B, Weiderpass E, et al. Smokeless tobacco use and risk of cancer of the pancreas and other organs. Int J Cancer 2005; 114: 9925.
  • 13
    Henley SJ, Thun MJ, Connell C, et al. Two large prospective studies of mortality among men who use snuff or chewing tobacco (United States). Cancer Causes Control 2005; 16: 34758.
  • 14
    Luo J, Ye W, Zendehdel K, et al. Oral use of Swedish moist snuff (snus) and risk for cancer of the mouth, lung, and pancreas in male construction workers: a retrospective cohort study. Lancet 2007; 369: 201520.
  • 15
    Kabat GC, Chang CJ, Wynder EL. The role of tobacco, alcohol use, and body mass index in oral and pharyngeal cancer. Int J Epidemiol 1994; 23: 113744.
  • 16
    Mashberg A, Boffetta P, Winkelman R, et al. Tobacco smoking, alcohol drinking, and cancer of the oral cavity and oropharynx among U.S. veterans. Cancer 1993; 72: 136975.
  • 17
    Bohlke K, Harlow BL, Cramer DW, et al. Evaluation of a population roster as a source of population controls: the Massachusetts Resident Lists. Am J Epidemiol 1999; 150: 3548.
  • 18
    Edge SB, American Joint Committee on Cancer. AJCC cancer staging manual, 7th edn. New York: Springer, 2010.
  • 19
    Boffetta P, Hecht S, Gray N, et al. Smokeless tobacco and cancer. Lancet Oncol 2008; 9: 66775.
  • 20
    Hecht SS, Rivenson A, Braley J, et al. Induction of oral cavity tumors in F344 rats by tobacco-specific nitrosamines and snuff. Cancer Res 1986; 46: 41626.
  • 21
    Warnakulasuriya KA, Ralhan R. Clinical, pathological, cellular and molecular lesions caused by oral smokeless tobacco—a review. J Oral Pathol Med 2007; 36: 6377.
  • 22
    Stepanov I, Jensen J, Hatsukami D, et al. Tobacco-specific nitrosamines in new tobacco products. Nicotine Tob Res 2006; 8: 30913.
  • 23
    Administration SAaMHS. Results from the 2009 National Survey on drug use and health: Volume I. Summary of national findings (Office of Applied Studies, NSDUH Series H-38A, HHS Publication No. SMA 10-4856 Findings), 2010.
  • 24
    Gartner CE, Hall WD, Vos T, et al. Assessment of Swedish snus for tobacco harm reduction: an epidemiological modelling study. Lancet 2007; 369: 20104.
  • 25
    Rodu B, Godshall WT. Tobacco harm reduction: an alternative cessation strategy for inveterate smokers. Harm Reduct J 2006; 3: 3760.
  • 26
    Stratton K, Shetty P, Wallace R, et al. Clearing the smoke: the science base for tobacco harm reduction—executive summary. Tob Control 2001; 10: 18995.
  • 27
    Applebaum KM, Furniss CS, Zeka A, et al. Lack of association of alcohol and tobacco with HPV16-associated head and neck cancer. J Natl Cancer Inst 2007; 99: 180110.
  • 28
    Peters ES, McClean MD, Marsit CJ, et al. Glutathione S-transferase polymorphisms and the synergy of alcohol and tobacco in oral, pharyngeal, and laryngeal carcinoma. Cancer Epidemiol Biomarkers Prev 2006; 15: 2196202.