The Role of Smoking in the Mechanisms of Development of Chronic Obstructive Pulmonary Disease and Atherosclerosis Cardiopulmonary Impact of Electronic Cigarettes and Vaping Products: A Scientific Statement From the American Heart Association Circulation Another Gross Reason to Put Down the E Cigarettes American Lung Association Broad range of studies show e cigs increase lung disease risk by 40 50% Stanton Glantz blog Vaping and COPD Vaping Possible Negative Effects on Lungs: State of the Art From Lung Capacity Alteration to Cancer Cureus