AUTHOR=Hafez Wael 

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.2022.977540

DOI=10.3389/fmed.2022.977540

ISSN=2296-858X