1. General S. Reducing the health consequences of smoking. 25 years of progress. US Department of Health and Human Services. 1989.
2. Shafey O, Eriksen M, Ross H, Mackay J. The Tobacco Atlas. 3rd ed. Atlanta, GA: Am Cancer Soc; 2009.
3. Fowles J, Dybing E. Application of toxicological risk assessment principles to the chemical constituents of cigarette smoke. Tob Control. 2003;12:424–30.
4. Green CR, Schumacher JN, Llovd RA, Rodgman A. Comparisons of the composition of tobacco smoke and the smokes from various tobacco substitutes. Beit Tabakforsch Intl. 2007;22:257–89.
5. Norman V, Ihrig A, Larson T, Moss B. The effect of some nitrogenous blend components on NO/NOx and HCN levels in mainstream and sidestream smoke. Beitr Tabakforsch. 1983;12:55–62.