Tobacco, e cigs may raise risk of Covid in healthy young: Study Daijiworld.com Effects of Smoking on Oxidative Stress and Vascular Function IntechOpen Chronic Pod Mod E Cigarette Aerosol Exposure Induces Aortic Dysfunction in Hypercholesterolemic Mice: Role of Oxidative Stress and Inflammation bioRxiv Vaping likely to cause lung and oral cancer, Australian researchers find in new review of evidence Vaping The Guardian