Stephen C Remole1, Utkarsh Kohli2, Sohail Hassan3. 1. Metropolitan Heart and Vascular Institute, Minneapolis, MN, USA. 2. Division of Pediatric Cardiology, Department of Pediatrics, West Virginia University Children's Hospital and West Virginia University School of Medicine, 64 Medical Center Drive, Robert C. Byrd Health Science Center, PO Box 9214, Morgantown, WV, 26506-9214, USA. utkarshkohli@gmail.com. 3. Division of Electrophysiology, Department of Cardiology, St. John Hospital and Medical Center, Detroit, MI, USA.