1. Department of Cardiac Surgery Pediatric Heart Center Vienna Vienna Austria
2. Department of Pediatric Cardiology Boston Children's Hospital Department of Pediatrics Harvard Medical School Boston MA USA
3. Department of Cardiovascular and Thoracic Surgery Children's Medical Center University of Texas Southwestern Medical Center Dallas TX USA
4. Labatt Family Heart Centre Hospital for Sick Children University of Toronto Toronto ON Canada
5. Pediatrics University of Pittsburgh School of Medicine Pittsburgh PA USA
6. Ann & Robert H. Lurie Children's Hospital Chicago IL USA
7. New England Organ Bank Boston NE USA
8. Division of Pediatric Cardiology Children's Medical Center University of Texas Southwestern Medical Center Dallas TX USA
9. Paediatric and Neonatal Donation and Transplantation Organ Donation and Transplantation NHS Blood and Transplant London UK
10. Congenital Heart Center University of Florida Gainesville FL USA
11. Department of Congenital Heart Disease/Pediatric Cardiology Deutsches Herzzentrum Berlin Germany