1 Comprehensive Arrhythmia and Research Management (CARMA) Center, USA; Cardiovascular Medicine Division, Section of Cardiac Electrophysiology, University of Utah, School of Medicine, Salt Lake City, UT, USA.
2 Department of Medicine (Section of Cardiovascular Research), Baylor College of Medicine, Houston, TX, USA; Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, USA; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX, USA. Electronic address: nal@bcm.edu.