Scripps Health E cigarettes remain the most commonly used tobacco product among middle and high school students in the United States, according to the Instagram Guidance for Healthcare Providers on Evaluating and Tracking Patient Use of E Cigarettes or ENDS Products American Lung Association What You Should Know About E cigarettes and EVALI CASAA E Cigarettes & Vaping: Facts for Parents HealthyChildren.org The Synthetic Nicotine Loophole Fueling a Return to Teenage Vaping The New York Times E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health