Efficacy and Safety of E Cigarette Use for Smoking Cessation: A Systematic Review and Meta Analysis of Randomized Controlled Trials The American Journal of Medicine Conclusions about the effects of electronic cigarettes remain the same Cochrane 7 things to know about e cigarettes and quitting smoking Centre for Evidence Based Medicine (CEBM), University of Oxford E Cigarettes and Their Dangers Amazon.com.br Latest Cochrane Review finds high certainty evidence that nicotine e cigarettes are more effective than traditional nicotine replacement therapy (NRT) in helping people quit smoking Cochrane Interventions for smoking cessation: An overview of Cochrane reviews