AUTHOR=Venturini Elio , Giallauria Francesco TITLE=Factors Influencing Running Performance During a Marathon: Breaking the 2-h Barrier JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2022.856875 DOI=10.3389/fcvm.2022.856875 ISSN=2297-055X