Vaping Could Make You 40 Percent More Likely to Get Respiratory Disease The Brink Boston University Frontiers More to Explore: Further Definition of Risk Factors for COPD Differential Gender Difference, Modest Elevation in PM2.5, and e Cigarette Use Analysis underscores the health risks of e cigarettes Pulmonary Electronic cigarette use and its association with asthma chronic obstructive pulmonary disease (COPD) and asthma COPD overlap sy