Health Effects of Vaping Smoking and Tobacco Use CDC The flavoring chemicals in e cigarettes are linked to a disease known as popcorn lung Flavor induced inflammation and cytotoxicity in human aortic smooth muscle cells: Potential implications for E cigarette safety ScienceDirect Addressing the challenges of E cigarette safety profiling by assessment of pulmonary toxicological response in bronchial and alveolar mucosa models Scientific Reports Don't Fall for the Safety Myth of Vaping & E Cigarettes