1. Department of Congenital Cardiology; Erasmus MC; Rotterdam The Netherlands
2. Department of Cardiology; UMC Radboud; Nijmegen The Netherlands
3. Department Pediatric Cardiology and Congenital Heart Disease; German Heart Centre; Munich Germany
4. Ahmanson/UCLA Adult Congenital Heart Disease Center, Ronald Reagan/UCLA Medical Center; Los Angeles California
5. Division of Pediatric Endocrinology; Cincinnati Children's Hospital Medical Center; Cincinnati Ohio
6. Department of Cardiology; UZ Gent; Gent Belgium
7. Center for Pediatric and Congenital Cardiology, IRCCS Policlinico; San Donato Italy
8. Department Pediatric Cardiology and Congenital Heart Disease; RBHT; London United Kingdom
9. Division of Pediatric Cardiology; Cincinnati Children's Hospital Medical Center; Cincinnati Ohio
10. The Heart Center, Nationwide Children's Hospital, The Ohio State University; Columbus Ohio