Selling a Poison by the Barrel: Liquid Nicotine for E Cigarettes The New York Times E Cigarettes: Decoding What's Behind The Vapor Vaping Tar and nicotine content of e cigarettes and conventional cigarettes Download Table The truth about e cigarettes E cigarettes with a cigarette like level of nicotine are effective in reducing smoking and exposure to carcinogen, study finds VCU News Virginia Commonwealth University