Results from the Annual National Youth Tobacco Survey (NYTS) FDA Using E Cigarettes: What Clinicians Must Know Psychopharmacology Institute As e cigarette use grows, more research needed on long term effects of vaping American Heart Association Exposure to e cigarette advertising and young people's use of e cigarettes: A four country study Most E cigarette Users Ages 18 to 29 Never Smoked Before American Cancer Society Frontiers Electronic cigarette use and consumption patterns in medical university students