1. Department of Molecular Pharmacology and Experimental Therapeutics, Windland Smith Rice Sudden Death Genomics Laboratory (G.W.S., D.J.T., J.P.A., M.J.A.)
2. King’s College London, United Kingdom (M.A.S.)
3. Molecular and Clinical Sciences Research Institute, St George's University of London, London, United Kingdom (E.R.B.)
4. Cardiology Clinical Academic Group, St George's University Hospitals’ NHS Foundation Trust, London, United Kingdom (E.R.B.)
5. Office of the Medical Examiner, County of Cook, Chicago, IL (S.M.W.)
6. Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL (S.M.W.).
7. Department of Cardiovascular Diseases, Division of Heart Rhythm Service (M.J.A.)
8. Department of Pediatric and Adolescent Medicine, Division of Pediatric Cardiology (M.J.A.), Mayo Clinic, Rochester, MN