Differential Toxicity of Electronic Cigarette Aerosols Generated from Different Generations of Devices In Vitro and In Vivo Environment & Health Frontiers The Chemical Complexity of e Cigarette Aerosols Compared With the Smoke From a Tobacco Burning Cigarette Frontiers Electronic cigarette use and consumption patterns in medical university students E cigarette vapour from base components propylene glycol and vegetable glycerine inhibits the inflammatory response in macrophages and epithelial cells bioRxiv