1. Section for Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
2. Center of Genetic Muscle Disorders, Johns Hopkins University School of Medicine, Baltimore, Maryland3Kennedy Krieger Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland4Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland5Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland
3. Section for Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland6Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland7Section for Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia