AUTHOR=Visser Margot P. J. , Dofferhoff Anton S. M. , van den Ouweland Jody M. W. , van Daal Henny , Kramers Cornelis , Schurgers Leon J. , Janssen Rob , Walk Jona TITLE=Corrigendum: Effects of Vitamin D and K on Interleukin-6 in COVID-19 JOURNAL=Frontiers in Nutrition VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2022.868324 DOI=10.3389/fnut.2022.868324 ISSN=2296-861X