Quitting nicotine is one of the best decisions a person can make for their health. Here's how. Idaho Capital Sun E Cigarettes Are Effective at Helping Smokers Quit, a Study Says The New York Times Vape & Zen Tintniac E cigarettes with a cigarette like level of nicotine are effective in reducing smoking and exposure to carcinogen, study finds VCU News Virginia Commonwealth University E cigarette use by smoking status Tobacco Use in Canada University of Waterloo