E Cigarette Smoke Causes Lung Cancer in Mice NYU Langone News 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 less addictive than cigarettes, PATH study shows Penn State University E cigarettes: effective cessation tool or new gateway to smoking tobacco? UICC Electronic cigarette Wikipedia