E cigarettes increase harm to smokers, so should not be promoted as a harm reduction strategy (in 10 slides) Stanton Glantz blog Vaping is significantly more effective at helping people quit smoking than gum or lozenges The Brighter Side of News E cigarettes a tool to reduce inequalities in smoking? UCL Institute of Epidemiology and Health Care Blog Cigarette to e cigarette switch improves wheeze, dual use does not The Call to Action E Cigarette Use Among Youth and Young Adults NCBI Bookshelf Can Electronic Cigarettes Really Help You Quit Smoking? Tastefog