AUTHOR=Huang Christopher L.-H. , Ferenczi Emily A. , Lei Ming TITLE=Editorial: Optogenetics: An Emerging Approach in Cardiac Electrophysiology JOURNAL=Frontiers in Physiology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2020.00414 DOI=10.3389/fphys.2020.00414 ISSN=1664-042X