1Division of Pediatric Cardiology, University of California Los Angeles (UCLA) Medical Center, Los Angeles, California, USA
2UCLA Cardiac Arrhythmia Center and Ahmanson Adult Congenital Heart Disease Center, UCLA Health System, Los Angeles, California, USA
3Department of Cardiovascular Medicine, Division of Heart Rhythm Services, Mayo Clinic, Rochester, Minnesota, USA
4Division of Pediatric Cardiology, Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota, USA
5Department of Molecular Pharmacology and Experimental Therapeutics, Windland Smith Rice Sudden Death Genomics Laboratory, Mayo Clinic, Rochester, Minnesota, USA
6Department of Pediatrics, Medical College of Wisconsin, Herma Heart Institute, Milwaukee, Wisconsin, USA
7Biomagnetism Laboratory, Department of Medical Physics, University of Wisconsin, Madison, Wisconsin, USA
8Department of Pediatrics, Tsukuba University, Ibaraki, Japan
9Department of Pediatric Cardiology, Emma Children’s Hospital, Amsterdam University Medical Center, Amsterdam, the Netherlands
10Division of Cardiology, Children's Hospital Los Angeles, Los Angeles, California, USA
11Division of Cardiology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
12Arrhythmia, Inherited Cardiac Diseases Unit, Hospital Sant Joan de Déu, Barcelona, Spain
13Medical Sciences Department, School of Medicine, University of Girona, Girona, Spain
14The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio USA
15Primary Children’s Hospital, University of Utah School of Medicine, Salt Lake City, Utah, USA
16Division of Pediatric Cardiology, Children's Healthcare of Atlanta, Emory University, Atlanta, Georgia, USA
17Monroe Carrell Children’s Hospital, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
18Division of Pediatric Cardiology, Stanford University, Palo Alto, California, USA
19Department of Pediatrics, Division of Cardiology, Duke University School of Medicine, Durham, North Carolina, USA
20Department of Cell Biology, Duke University School of Medicine, Durham, North Carolina, USA
21Division of Cardiology, Rady Children’s Hospital, University of California San Diego, San Diego, California, USA