AUTHOR=Anselmino Matteo , De Ferrari Gaetano Maria TITLE=Editorial: Highlights in Cardiac Rhythmology: 2021 JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2022.866883 DOI=10.3389/fcvm.2022.866883 ISSN=2297-055X