Is vaping more harmful than smoking cigarettes? More people incorrectly think so: Newsroom UT Southwestern, Dallas, Texas Harvard scientist finds microbial contaminants in e cigs Harvard Gazette What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Hon Lik invented the e cigarette to quit smoking but now he's a dual user Vaping The Guardian About E Cigarettes (Vapes) Smoking and Tobacco Use CDC The Ugly Truth About Vaping American Heart Association