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, Landmark E Cigarette Report Explodes Myth that Vaping Is as Toxic as Smoking WHO warning on vaping draws harsh response from U.K. researchers Science AAAS Juuling: The New Threat Of Nicotine Addiction Georgia Public Broadcasting E Cigarettes Are Effective at Helping Smokers Quit, a Study Says The New York Times FDA warns retailers against illegal sale of e cigarettes to children PBS News