ENDS Not Effective as Tobacco Cessation Method, Says Study AAFP E Cigarettes: They May Help People to Quit Smoking, But What About Harm to Public Health? E Cigarettes Show Surprising Efficacy in Smoking Cessation Respiratory Therapy 2FIRSTS France's HAS to Address Role of E Cigarettes in Updated Smoking Cessation Guidelines, Tells 2Firsts Combining electronic cigarettes and counseling helps more smokers quit Harvard Health