1. Division of Cardiac Surgery Pediatric Heart Center University Children's Hospital Zurich Zurich Switzerland
2. Children's Hospital Colorado Denver CO USA
3. Stanford University Palo Alto CA USA
4. Nationwide Children's Hospital Columbus OH USA
5. Fundacion Cardiovascular de Colombia Bucaramanga City Colombia
6. Congenital Heart Center University of Florida Gainesville FL USA
7. Washington University School of Medicine St Louis MO USA
8. University of Utah Salt Lake City UT USA
9. Pediatric Cardiac Center Hungarian Institute of Cardiology Budapest Hungary
10. Division of Pediatric Cardiology University of Texas Southwestern Medical Center Children's Medical Center Dallas TX USA
11. Department of Congenital Heart Disease/Pediatric Cardiology Deutsches Herzzentrum Berlin Germany
12. Department of Cardiovascular and Thoracic Surgery Children's Medical Center University of Texas Southwestern Medical Center Dallas TX USA
13. Labatt Family Heart Centre Hospital for Sick Children University of Toronto Toronto ON Canada