1 Harvard-Thorndike Electrophysiology Institute, Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. Electronic address: adavila@bidmc.harvard.edu.
2 Harvard-Thorndike Electrophysiology Institute, Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. Electronic address: https://twitter.com/rdangeloMD.