Frontiers Aerosolized nicotine from e cigarettes alters gene expression, increases lung protein permeability, and impairs viral clearance in murine influenza infection Differential Toxicity of Electronic Cigarette Aerosols Generated from Different Generations of Devices In Vitro and In Vivo Environment & Health Chronic electronic cigarette exposure in mice induces features of COPD in a nicotine dependent manner Thorax Health Effects of E Cigarettes Kansas Health Institute Everything you need to know about e cigarettes Vox Exposure to third hand e cigarette vapour impairs cognitive function in young mice ScienceDirect