Severe restrictions to be placed on the sale of most e cigarettes: FDA pennlive.com E Cigarettes: Safer But Not Safe E Cigarette: A Threat to Your Health VIMS&RC 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, How to Smoke E Cigarettes Your First Vaping Guide SMOKO E Cigarettes Are e cigarettes dangerous, or a better alternative to tobacco?