Understanding potential mechanisms of harm: the drivers of electronic cigarette induced changes in alveolar macrophages, neutrophils, and lung epithelial cells American Journal of Physiology Lung Cellular and Molecular Physiology American E cigarette Characteristics, Safety Issues, & Regulation Britannica PDF) Trying to clear the air: e cigarette use and periodontal disease Adolescents' Use of Pod Mod E Cigarettes Urgent Concerns New England Journal of Medicine An updated overview of e cigarette impact on human health Respiratory Research Springer Nature Link E cigarette, or vaping, product use associated lung injury: a review Pneumonia Springer Nature Link