What Happens When You Stop Smoking? Clutch Vape What are electronic cigarettes (e cigarettes)? Simple and Practical Mental Health E Cigarettes and Stop Smoking Services: Notes from the Front Line E Cigarette Direct After 3 deaths, CDC says to stop using e cigarettes PBS News E cigarettes: misconceptions about their dangers may be preventing people from quitting smoking Centre for Evidence Based Medicine (CEBM), University of Oxford