How safe are e cigarettes for patients with COPD? A systematic review Practice Nursing Is lung inflammation worse in e cigarette users than smokers, as a new study suggests? Health News The Indian Express COPD and Vaping: Understanding the Risks and Long Term Effects 5 year longitudinal study finds e cigs and cigs have similar risks for respiratory disease and COPD; dual use is worse Stanton Glantz blog E Cigarettes And Copd E Cigarettes Are Not a Safe Alternative for COPD: A Closer Look Electronic Cigarette Use in US Adults at Risk for or with COPD: Analysis from Two Observational Cohorts Journal of General Internal Medicine Springer Nature Link