Health effects and known pathology associated with the use of E cigarettes ScienceDirect E Cigarette Health Warning Sign FOR BOARDS OF HEALTH & TOBACCO RETAILERS ONLY English: Massachusetts Health Promotion Clearinghouse Vaping Forward South Bronx Coalition Analysis suggests e cigarette use may be linked to lower rates of smoking E cigarettes should be offered to smokers, say doctors BBC News Infographic: Dangers of E cigarettes & Toxicity UPMC HealthBeat