E Cigarettes and Vaping Texas Poison Center Network 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, A Guide to E Cigarettes Rechargeable SMOKO E Cigarettes FDA hazy on e cigarettes' safety CNN.com IQOS e cigarette comes to Korea First genome wide comparison of vapers and smokers finds similar DNA changes linked to disease risk