AUTHOR=Książek Anna , Zagrodna Aleksandra , Słowińska-Lisowska Małgorzata , Lombardi Giovanni TITLE=Corrigendum: Relationship between metabolites of vitamin D, free 25-(OH)D, and physical performance in indoor and outdoor athletes JOURNAL=Frontiers in Physiology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2022.1003648 DOI=10.3389/fphys.2022.1003648 ISSN=1664-042X