Corrigendum: Myocardial Viability, Functional Status, and Collaterals of Patients With Chronically Occluded Coronary Arteries - Yang, Xueyao; Tian, Jinfan; Zhang, Lijun; Dong, Wei; Mi, Hongzhi; Li, Jianan; Li, Jiahui; Han, Ye; Zuo, Huijuan; An, Jing; He, Yi; Song, Xiantao (Frontiers in Cardiovascular Medicine, 2022)