AUTHOR=Dierckx Hans , Fenton Flavio H. , Filippi Simonetta , Pumir Alain , Sridhar S. TITLE=Editorial: Simulating Normal and Arrhythmic Dynamics: From Sub-cellular to Tissue and Organ Level JOURNAL=Frontiers in Physics VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2019.00089 DOI=10.3389/fphy.2019.00089 ISSN=2296-424X