The evolution of electronic cigarettes. (A) Illustration of first, Download Scientific Diagram E cigarettes, varenicline and cytisine are the most effective stop smoking aids, analysis of over 150,000 smokers reveals Cochrane 63 Electronic Cigarette Illustrations haute rsolution Getty Images Cigarette electronique, Liquide 18.1 E cigarette products and the e cigarette market Tobacco in Australia Electronic Nicotine Delivery Systems (ENDS) SCIREQ