FDA permits the marketing of an e cigarette for the first time, paving the way for vaping products to be legally sold in the U.S. Roswell Park Comprehensive Cancer Center Buffalo, E cigarettes proving to be a danger to teens Some E Cigarette Flavors May Be More Harmful Than Others The Atlantic E Cigarettes Offers No Safer Path, Study Shows Charles R. Dr Vaping E Cigarette Health Risks: What's the Latest? Dana Farber Cancer Institute