1. Centers for Disease Control and Prevention (CDC). Current Cigarette Smoking Among Adults—United States, 2005–2012. Morbidity and Morality Weekly Report 2014; 63: 29–34. [accessed 2014 Apr 25].
2. U.S. Department of Health and Human Services. The Health Consequences of Smoking—50 Years of Progress: A Report of the Surgeon General. Atlanta: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health. 2014.
3. World Health Organization. WHO Framework Convention on Tobacco Control. Geneva, Switzerland, 2003.
4. Hammond D. Health warning messages on tobacco products: A review. Tob Control. 2011; 20(5): 327-337.
5. Azagba S, Sharaf MF. The effect of graphic cigarette warning labels on smoking behavior: Evidence from the Canadian experience. Nicotine Tob Res. 2013; 15(3): 708-717.