Vaping doubles risk of serious lung disease, even without smoking history study Professor Erwin Loh Electronic cigarette use and its association with asthma, chronic obstructive pulmonary disease (COPD) and asthma COPD overlap syndrome among never cigarette smokers COPD and Vaping: Understanding the Risks and Long Term Effects What COPD Patients Should Know About Vaping and E Cigarettes LPT Medical