Vaping: The Most Effective Smoking Cessation Method Ever Devised Per N Cochrane Collaborative concludes e cigs as medical interventions help smokers quit (again) while continuing to ignoring stronger more relevant real world evidence that they don't Stanton Glantz blog Cochrane Library: Vaping Helps Quit Smoking Evidence update on the cancer risk of vaping e cigarettes: A systematic review Disposable e cigarettes and their nicotine delivery, usage pattern, and subjective effects in occasionally smoking adults Scientific Reports