Electronic cigarettes for smoking cessation The BMJ Differential Toxicity of Electronic Cigarette Aerosols Generated from Different Generations of Devices In Vitro and In Vivo Environment & Health E Cigarette and Endothelial FunctionA Critical Review of Preclinical Studies Chemical Research in Toxicology What research tells us about young people and e cigarette flavours Physicians for a Smoke Free Canada E cigarette Aerosol Exposure Induces Neurotoxic Accumulation of Metals in Mouse Brains Columbia University Mailman School of Public Health