The E Cigarette Industry, Waiting to Exhale The New York Times How E Cigarette Companies Manipulated the Government Union of Concerned Scientists Teens using e cigarettes show evidence of same toxic chemicals as smokers: Study ABC News Electronic Cigarettes and Vaping Devices E Cigarettes: Nicotine's Newest Red Herring Salud America Some e cigarette ingredients are surprisingly more toxic than others UNC Lineberger Comprehensive Cancer Center