1. Congenital Heart Center, Division of Cardiovascular Surgery, Departments of Surgery and Pediatrics, University of Florida, Gainesville, FL, USA
2. Division of Pediatric Cardiac Surgery, Arnold Palmer Hospital for Children, Orlando, FL, USA
3. Pediatric and Adult Congenital Heart Center, Cleveland Clinic, Cleveland, OH, USA
4. Division of Pediatric Cardiology, Hospital for Sick Children, Toronto, Ontario, Canada
5. Cardiac Unit, Great Ormond Street Hospital for Children, London, UK
6. Department of Cardiac Surgery, Inova Fairfax Hospital and Inova L.J Murphy Children's Hospital, Fairfax, VA, USA
7. Departments of Surgery and Pediatrics, Children's Hospital of Georgia, Augusta University, Augusta, GA, USA
8. Department of Cardiovascular and Thoracic Surgery, University of Louisville, Louisville, KY, USA
9. Norton Children's Hospital, Louisville, KY, USA
10. Pediatric Cardiac Surgery, Texas Children's Hospital, Houston, TX, USA
11. Pediatric Cardiothoracic Surgery, Peyton Manning Children's Hospital, Indianapolis, IN, USA
12. Johns Hopkins University School of Medicine, Baltimore, MD, USA
13. Division of Cardiovascular Surgery, Mayo Clinic-Children's Minnesota Cardiovascular Collaborative, Minneapolis, MN, USA
14. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
15. Division of Cardiovascular Surgery, The Montreal Children's Hospital, McGill University Health Centre, Montreal, Québec, Canada
16. Division of Cardiovascular Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
17. Kirklin Institute for Research in Surgical Outcomes, Birmingham, AL, USA