Don't Go Up in Smoke: E Cigarette Safety Electrical Safety Foundation International Vaping Related Illness and Lung Disease NEJM How are Non Combusted Cigarettes, Sometimes Called Heat Not Burn Products, Different from E Cigarettes and Cigarettes? FDA E cigarette devices expose users to toxic metals, UTS study finds Technology Org F.D.A. Authorizes E Cigarettes to Stay on U.S. Market for the First Time The New York Times