1 Programs in Metabolism and Medical and Population Genetics (M.C.C., M.B., M.D., Q.H., D.J., R.K., A.M., T.N., O.R., P.S., J.F., N.P.B.), The Broad Institute of MIT and Harvard, Cambridge, MA.
2 Precision Cardiology Laboratory (C.R.), The Broad Institute of MIT and Harvard, Cambridge, MA.
3 Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (C.R.).
4 Department of Pediatrics, University of California San Diego, La Jolla (P.K., Y.S., K.J.G.).
5 BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care (A.S.B.).
6 NIHR Blood & Transplant Research Unit in Donor Health & Behaviour, Department of Public Health & Primary Care (A.S.B.).
7 Victor Phillip Dahdaleh Heart & Lung Research Institute (A.S.B.).
8 Health Data Research UK Cambridge (A.S.B.).
9 University of Cambridge (A.S.B.).
10 British Heart Foundation Cambridge Centre of Excellence, Division of Cardiovascular Medicine, Addenbrooke's Hospital, United Kingdom (A.S.B.).
11 Cardiovascular Disease Initiative (K.G.A., P.T.E.), The Broad Institute of MIT and Harvard, Cambridge, MA.
12 Program in Medical & Population Genetics (K.G.A.), The Broad Institute of MIT and Harvard, Cambridge, MA.
13 Cardiovascular Research Center (K.G.A., P.T.E.), Massachusetts General Hospital, Boston.
14 Center for Genomic Medicine (K.G.A.), Massachusetts General Hospital, Boston.
15 British Heart Foundation Research Accelerator (R.T.L.), University College London.
16 Institute of Health Informatics (R.T.L.), University College London.
17 Health Data Rsrch UK London (R.T.L.), University College London.
18 Bart's Heart Center, St. Bartholomew's Hospital, London, United Kingdom (R.T.L.).
19 Verve Therapeutics (A.V.K.).
20 Division of Cardiology, Brigham and Women's Hospital (A.V.K.).
21 Demoulas Center for Cardiac Arrhythmias (S.A.L., P.T.E.), Massachusetts General Hospital, Boston.
22 Department of Pediatrics, Boston Children's Hospital (J.F.).
23 Department of Pediatrics, Harvard Medical School, Boston, MA (J.F.).