E cigarette and food flavoring diacetyl alters airway cell morphology, inflammatory and antiviral response, and susceptibility to SARS CoV 2 Cell Death Discovery Vaping Related Illness and Lung Disease NEJM What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Poumon fumeur vs non fumeur & risques de cancer Comparative study of lung toxicity of E cigarette ingredients to investigate E cigarette or vaping product associated lung injury ScienceDirect