1. Division of Pediatric Cardiology Texas Children's Hospital Baylor College of Medicine Houston TX USA
2. Division of Pediatric Cardiology University of Sao Paolo Sao Paolo Brazil
3. Texas Children's Hospital Baylor College of Medicine Austin TX USA
4. Division of Pediatric Cardiology Hospital Universitario La Paz Madrid Spain
5. Division of Pediatric Cardiology Children's Hospital Westmead Sydney NSW Australia
6. Division of Pediatric Cardiology Seattle Children's Hospital Seattle WA USA
7. Division of Pediatric Cardiology Freeman Hospital New Castle upon Tyne UK
8. Division of Pediatric Cardiology Children's Heart Center University of Giessen Giessen Germany
9. Labatt Family Heart Centre Hospital for Sick Children University of Toronto Toronto ON Canada
10. Division of Pediatric Cardiology Children's Medical Center University of Texas Southwestern Medical Center Dallas TX USA
11. Department of Cardiovascular and Thoracic Surgery Children's Medical Center University of Texas Southwestern Medical Center Dallas TX USA
12. Department of Congenital Heart Disease/Pediatric Cardiology Deutsches Herzzentrum Berlin Germany