Tobacco Smoke, Vaping, and Asthma AAFA.org Chronic electronic cigarette exposure in mice induces features of COPD in a nicotine dependent manner Thorax Tobacco and COPD: presenting the World Health Organization (WHO) Tobacco Knowledge Summary Respiratory Research Springer Nature Link Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine Cigarette smoke can reprogram cells in your airways, causing COPD to hang on after smoking ends