1. Department of Pediatrics, Division of Pediatric Cardiology, and Department of Cell Biology, Duke University School of Medicine, Durham, NC (A.P.L.).
2. University of Pennsylvania, Department of Cardiology, Philadelphia (C.A.A.C.).
3. Center for Inherited Cardiovascular Diseases, WellSpan Health, Lancaster, PA (C.A.A.C.).
4. Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN (C.A.A.C.).
5. Barts Heart Centre, West Smithfield, London, UK (C.A.A.C.).
6. Department of Medicine, Department of Pharmacology, and Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN (D.M.R.).
7. Cardiovascular Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (C.Y.H.).
8. Division of Cardiology, Department of Medicine, and Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC (S.H.S.).