Cochrane Review: E cigs more effective than traditional NRT to quit smoking Wolfson Institute of Population Health E Cigarettes, Cytisine, Varenicline Most Effective to Help Stop Smoking Southern Iowa Mental Health Center E cigarettes can be effective smoking cessation aids, Cochrane review suggests The Pharmaceutical Journal The Best and Worst Ways to Quit Smoking The Cochrane Review of behavioural interventions for smoking cessation, explained ASH Biomarkers of potential harm in people switching from smoking tobacco to exclusive ecigarette use, dual use or abstinence: secondary analysis of Cochrane systematic review of trials of ecigarettes for smoking cessation