AUTHOR=Wong Chun-Ka , Tse Hung-Fat TITLE=Editorial: Cardiac rhythmology case reports: Abnormal ECG and beyond JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2022.919117 DOI=10.3389/fcvm.2022.919117 ISSN=2297-055X