AUTHOR=Speeckaert Marijn M. , Delanghe Joris R. TITLE=Commentary: Vitamin D Status in Relation to the Clinical Outcome of Hospitalized COVID-19 Patients JOURNAL=Frontiers in Medicine VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2022.922820 DOI=10.3389/fmed.2022.922820 ISSN=2296-858X