Using E Cigarettes: What Clinicians Must Know Psychopharmacology Institute Introduction, Conclusions, and Historical Background Relative to E Cigarettes E Cigarette Use Among Youth and Young Adults NCBI Bookshelf PDF) Effects of electronic cigarette smoking on human health New Analysis Underscores Health Risks of E Cigarettes Johns Hopkins Medicine PDF) E cigarettes: the best and the worst case scenarios for public health an essay by Simon Chapman