Flavoring Agents in E cigarette Liquids: A Comprehensive Analysis of Multiple Health Risks Cureus NIH funded studies show damaging effects of vaping, smoking on blood vessels National Institutes of Health (NIH) E cigarettes: How they work, risks, and research E Cigarettes by Luckley House School Issuu PDF) Patterns of E Cigarette Use Among Youth and Young Adults: Review of the Impact of E Cigarettes on Cigarette Smoking 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