E cigarettes: The Basics Tobacco Tactics Nicotine pharmacokinetics of electronic cigarettes: A pooled data analysis from the literature ScienceDirect E cigarettes less addictive than cigarettes, PATH study shows Penn State University Most E cigarette Users Ages 18 to 29 Never Smoked Before American Cancer Society Do E Cigarettes Do More Good Than Harm? WSJ Broad evidence implicates e cigarettes as a cause of cancer Stanton Glantz blog