1. Eriksen M, Mackay J, Schluger N, Gomeshtapeh F, Drope J. The tobacco atlas. 5th ed. Brighton, United Kingdom: American Cancer Society; 2015. http://www.tobaccoatlas.org
2. World Health Organization. World No Tobacco Day: 31 May 2017. Geneva, Switzerland: World Health Organization; 2017. http://www.who.int/campaigns/no-tobacco-day/2017/en/