Full article: Health impact of e cigarettes and heated tobacco products in chronic obstructive pulmonary disease: current and emerging evidence E cigs: What You Need to Know if You Care for Patients with COPD Challenges in COPD The Impact of E Cigarettes and Asthma: What You Need to Know Electronic cigarette use and its association with asthma, chronic obstructive pulmonary disease (COPD) and asthma COPD overlap syndrome among never cigarette smokers