Effects of vaping on physical and mental health in at risk populations (VAPE): mixed methods study of motivations for and perspectives on vaping in patients with opioid use disorder BJPsych Open Cambridge Since their introduction in Europe in 2006 and the U.S. in 2007, the use of e cigarettes a.k.a., vapes has skyrocketed. A recent review from researchers in Australia found the results PDF) A typology of vaping: Identifying differing beliefs, motivations for use, identity and political interest amongst e cigarette users Smoky crisis brewing Dons Press E Cigarettes: Good Idea? Bad Idea? BU Today Boston University Stealth Vape Research You have got to be kidding! Vapetime UK