Analysis suggests e cigarette use may be linked to lower rates of smoking E Cigarette Health Warning Sign FOR BOARDS OF HEALTH & TOBACCO RETAILERS ONLY English: Massachusetts Health Promotion Clearinghouse Anti Vape Campaign Latest Cochrane Review finds high certainty evidence that nicotine e cigarettes are more effective than traditional nicotine replacement therapy (NRT) in helping people quit smoking Cochrane Vaping, E Cigarettes, and Oral Health. Does Vaping Damage Teeth?