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 E Cigarette How E Cigarettes Work, Health Risks & Teen Use Lung cancer risks persist with e cigarette use after quitting tobacco smoking E cigarettes: 'cancer risk close to zero' Bhekisisa Teens inhale cancer causing chemicals in e cigarettes Can Vaping Cause Cancer? Lung, Oral, and Bladder