E Cigarettes Are a Gateway to Tobacco, Study Says This Week's FDA Approval of E Cigarettes: Throwing kids under the bus vs. abandoning adult smokers? Insights@Questrom The sweetness of e cigarette flavors is more likely to get teens hooked than the nicotine U.S. surgeon general says e cigarettes are health threat to youth Mayo Clinic News Network What Science Says About E Cigarettes Science Friday An in vitro toxicological assessment of two electronic cigarettes: E liquid to aerosolisation ScienceDirect