Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine 432 Hotcakes: E cigarettes for smoking cessation, Gabapentin and COPD exacerbations, Lidocaine for neck pain, C diff risk by antibiotic type, and dosing by clicks for GLP1's The Curbsiders E cigarettes May Worsen COPD Patient Care Online Electronic cigarette use and its association with asthma, chronic obstructive pulmonary disease (COPD) and asthma COPD overlap syndrome among never cigarette smokers Are E Cigarettes a Safe Alternative to Smoking? Using Airway Cell Cultures to Assess Early Indicators of COPD Progression Inquiries Journal