¹JONATHAN B. FINKEL, MD and ²DANIEL R. FRISCH, MD

Departments of ¹Internal Medicine and ²Medicine, Division of Cardiology, Thomas Jefferson University Hospital, Philadelphia, PA

¹MIGUEL VALDERRÁBANO, MD, FACC, ¹DARYL SCHULZ, BS and ²BORUT GERSAK, MD

¹Division of Cardiac Electrophysiology, Methodist DeBakey Heart and Vascular Center and Methodist Hospital Research Institute, The Methodist Hospital, Houston, TX
²Department of Cardiovascular Surgery, University Medical Center, Ljubljana, Slovenia

DAWN F. SABIN, RN, BS, FHRS and WALTER K. CLAIR, MD, MPH, FACC, FHRS

Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN

¹FRANCISCO FEMENÍA, MD, ¹MAURICIO ARCE, MD, ¹MARTÍN ARRIETA, Tc, ²WILLIAM F. MCINTYRE, MD, and ²ADRIAN BARANCHUK, MD, FACC

¹Unidad de Arritmias, Departamento de Cardiología, Hospital Español de Mendoza, Argentina
²Heart Rhythm Service, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada

ERNEST W. LAU, MD

Department of Cardiology, Royal Victoria Hospital, Belfast, UK

RAVI K. SUREDDI, MBBS, ABHISHEK DESHMUKH, MD and HAKAN PAYDAK, MD

Division of Cardiology, Department of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR