The impact of tobacco smoking and electronic cigarette vaping on salivary biomarkers. A comparative study ScienceDirect SSPH+ Inflammatory and Carcinogenic Biomarker Signatures in E Cigarette Users: A Comprehensive Meta Analysis of 24,000 Adults NIH funded studies show damaging effects of vaping, smoking on blood vessels National Institutes of Health (NIH) Adverse effects of electronic cigarettes on the disease naive oral microbiome Science Advances E cigarettes compromise the gut barrier and trigger inflammation: iScience Vitamin E Acetate in Bronchoalveolar Lavage Fluid Associated with EVALI New England Journal of Medicine