1 Associate Professor of Cardiac Electrophysiology, Head, Tehran Heart Center Research Institute, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran, ssadeghian@tums.ac.ir.
2 MPH Student, Research Assistant, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran, a-aminorroaya@student.tums.ac.ir.
3 Assistant Professor of Cardiology, Head, Syncope Unit of Tehran Heart Center, Tehran University of Medical Sciences, Jalal Al Ahmad, and North Kargar Intersection, Tehran, Iran, Email: mtajdini@sina.tums.ac.ir.