The role of cigarette smoke induced pulmonary vascular endothelial cell apoptosis in COPD Respiratory Research Springer Nature Link Full article: Health impact of e cigarettes and heated tobacco products in chronic obstructive pulmonary disease: current and emerging evidence Juul and COPD Is Vaping with COPD Safe? Does Vaping Cause COPD? Vaping' Increases Odds of Asthma and COPD Johns Hopkins Medicine Older users of e cigarettes at greater risk of respiratory illness, study suggests CUNY Graduate School of Public Health & Health Policy