E cigarettes contain hazardous substances, addictive and harmful The Hidden Dangers: E Cigarettes, Heated Tobacco, and Their Impact on Oxidative Stress and AtherosclerosisA Systematic Review and Narrative Synthesis of the Evidence Health Effects Vaping Information, Solutions & Interventions Toolkit Stanford Medicine Harmful Effects of Vaping Chart Health Edco E Cigarettes' Risks and Benefits: Highlights From the Report to the F.D.A. The New York Times Analysis suggests e cigarette use may be linked to lower rates of smoking