Electronic cigarette use and its association with asthma, chronic obstructive pulmonary disease (COPD) and asthma COPD overlap syndrome among never cigarette smokers Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine Health Effects of Cigarettes: Chronic Obstructive Pulmonary Disease (COPD) Smoking and Tobacco Use CDC E Cigarettes May Cause COPD. Here's Why Prince Court Medical Centre Exclusive E cigarette Use Significantly Associated with COPD RT