Smokers who use e cigs as for smoking cessation are more likely to end up dual users than to switch completely or stop smoking and vaping Stanton Glantz blog Response to Physicians for Smoke Free Canada's coverage of the Cochrane review of e cigarettes for smoking cessation Centre for Evidence Based Medicine (CEBM), University of Oxford Impact Environnemental : Comparaison entre la Vape et les Cigarettes Traditionnelles Democrats urge FDA to clear market of all flavored e cigarettes