E cigarettes, varenicline and cytisine are the most effective stop smoking aids, analysis of over 150,000 smokers reveals Cochrane Policy must move from uncertainty to evidence based., MYTH: We dont have enough long term data on vaping, so we can't be sure it's a safer alternative., REALITY: This claim no longer applies when A Randomized Trial of E Cigarettes versus Nicotine Replacement Therapy New England Journal of Medicine E cigarettes and harm reduction: An evidence review RCP Cochrane Library: Vaping Helps Quit Smoking