Chemicals Chronic E Cigarette Use Impairs Endothelial Function on the Physiological and Cellular Levels Arteriosclerosis, Thrombosis, and Vascular Biology Vape to Cigarette Conversion: How Many Cigarettes Equal Your Vape Hits Velvet Cloud Are there passive smoking risks from e cigarettes? Horizon Magazine Disposable E Cigarette Use among U.S. Youth An Emerging Public Health Challenge New England Journal of Medicine Catecholamine levels with use of electronic and combustible cigarettes