Study: Vaping combined with smoking may be as harmful as smoking cigarettes alone

Association of Cigarette and Electronic Cigarette Use Patterns With Levels of Inflammatory and Oxidative Stress Biomarkers Among US Adults: Population Assessment of Tobacco and Health Study – Circulation

Commentaries: Vaping combined with smoking is likely as harmful as smoking cigarettes alone, study finds – American Heart Association AND CVD Biomarker Levels Up for Dual Use of E-Cigarettes, Cigarettes – Physician’s Weekly