FDA warns retailers against illegal sale of e cigarettes to children PBS News Vaping E Cigarette Health Risks: What's the Latest? Dana Farber Cancer Institute Don't Assume E Cigarettes Are Safe: What You Need to Know Before Vaping Some E Cigarette Flavors May Be More Harmful Than Others The Atlantic 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, Vaping Indoors and How it Contributes to Sick Home Syndrome Bactronix