E cigarette use tied to increased COPD, asthma risk MDedge E cigarettes May Worsen COPD Patient Care Online Vaping' Increases Odds of Asthma and COPD Johns Hopkins Medicine Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Research Links E Cigarettes to COPD and Hypertension Technology Networks Electronic cigarette use and its association with asthma, chronic obstructive pulmonary disease (COPD) and asthma COPD overlap syndrome among never cigarette smokers