Excitement About Quit Smoking with Cytisine: How to Stop Smoking Easily Jason Wong( 415) 375-3340 ext. 4 (1 )World Health Company. WHO Report on the Worldwide Tobacco Epidemic, 2011, Geneva: World Health Company, 2011. (2 )Annals of Epidemiology, Volume 25, Problem 3, 179 -182. e1 View initial content with multimedia: