E Cigarette Use: Device Market, Study Design, and Emerging Evidence of Biological Consequences Dartmouth led Study Shows E Cigarette Switching Can Ease Respiratory Symptoms Geisel News The Hidden Dangers: E Cigarettes, Heated Tobacco, and Their Impact on Oxidative Stress and AtherosclerosisA Systematic Review and Narrative Synthesis of the Evidence Study gives e cigarettes an edge in helping smokers to quit Twin Cities Harvard scientist finds microbial contaminants in e cigs Harvard Gazette Cardiovascular effects of electronic cigarettes Nature Reviews Cardiology