CDC links vaping to 33 deaths in U.S. The Shield Online Study suggests uncertainty in e cigarettes' usefulness for quitting smoking Harvard Gazette FDA adds warning labels to e cigarettes; youth use of nicotine devices in Minnesota has skyrocketed A Public Participation Forum for the FDA Center for Tobacco Products and its Federal Advisory Committee ( Study: E cigarettes may damage blood vessels American Heart Association E cigarette use on the rise among US adults across subgroups