1. US Department of Health and Human Services. The health consequences of smoking: a report of the Surgeon General. Atlanta, GA: US Department of Health and Human Services, CDC; 2004.
2. Taylor RB. White coat tales – medicine’s heroes, heritage and misadventures. New York: Springer; 2007. p. 96.
3. WHO Report on the global tobacco epidemic, 2008 (foreword and summary). World Health Organization; 2008.
4. Dube SR, Asman K, Malarcher A, et al. Cigarette smoking among adults and trends in smoking cessation. United States 2008. Centers for Disease Control and Prevention. MMWR Morb Mortal Wkly Rep. 2009;58(44):1227–32.
5. Online Etymological Dictionary.
http://www.etymonline.com/index.php?term=tobacco
.