AUTHOR=Wang Mingqiang , Yang Dan , Hu Zhao , Shi Yunke , Ma Yiming , Cao Xingyu , Guo Tao , Cai Hongbo , Cai Hongyan TITLE=Corrigendum: Extracorporeal Cardiac Shock Waves Therapy Improves the Function of Endothelial Progenitor Cells After Hypoxia Injury via Activating PI3K/Akt/eNOS Signal Pathway JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2021.793246 DOI=10.3389/fcvm.2021.793246 ISSN=2297-055X