1 University of California, Los Angeles (UCLA) Electrophysiology, Division of Cardiology, Department of Medicine, UCLA, Los Angeles, CA, USA.
2 University of California, Los Angeles (UCLA) Electrophysiology, Division of Cardiology, Department of Medicine, UCLA, Los Angeles, CA, USA; Molecular, Cellular and Integrative Physiology Interdepartmental Programs, UCLA, Los Angeles, CA, USA. Electronic address: mvaseghi@mednet.ucla.edu.