1. Division of Pediatric Cardiology, Department of Pediatrics Ochsner Health System New Orleans Louisiana USA
2. Department of Pediatrics, Division of Pediatric Cardiology UCLA Health System Los Angeles California USA
3. Division of Cardiology, Department of Medicine Ahmanson/UCLA Adult Congenital Heart Disease Center, UCLA Health System Los Angeles California USA
4. Division of Cardiology, Department of Medicine UCLA Cardiac Arrhythmia Center, UCLA Health System Los Angeles California USA
5. Division of Pediatric Cardiology, Department of Pediatrics Vanderbilt University Nashville Tennessee USA