Electronic Cigarettes: The Jury's Still Out RT Explainer: What are e cigarettes? What Happened to E Lites? A Lesson in Vape Culture Electric Tobacconist E Cigarette Use Among NC High Schoolers Still On The Rise Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Largest US study of e cigarettes shows their value as smoking cessation aid