AUTHOR=Gram Magnus , Åkerström Bo TITLE=Editorial: Biomarkers of Oxidative Stress JOURNAL=Frontiers in Physiology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2020.00338 DOI=10.3389/fphys.2020.00338 ISSN=1664-042X