E cigarettes, heated tobacco and smokeless tobacco products European Lung Foundation FACT: Most e cigarette users also smoke cigarettes, a pattern known as dual use. This means the tobacco industry isn't helping people quit; it's sustaining addiction through another product. While the industry claims Oklahoma is still combating youth e cigarette usage as CDC reports national decline KOSU How Electronic Cigarettes Work HowStuffWorks E Cigarettes' Risks and Benefits: Highlights From the Report to the F.D.A. The New York Times New York governor proposes ban on flavored e cigarettes Nation postguam.com