1. Children's Memorial Health Institute, Warsaw, Poland
2. Nottingham University Hospitals, Nottingham, UK
3. Great Ormond Street Hospital for Children, London, UK
4. University Children‘s Hospital, Heidelberg, Germany
5. Semmelweis University of Medicine, Budapest, Hungary
6. St. James University Hospital, Leeds, UK
7. Azienda Ospedaliera di Padova, Dipartimento de Pediatria, Padova, Italy
8. University Hospital Motol, Prague, Czech Republic
9. Royal Hospital for Sick Children, Yorkhill, Glasgow, UK
10. Universitair Ziekenhuis KU Leuven, Belgium
11. Hopital Robert Debre, Paris, France
12. Rabin Medical Center, Petah Tikva, Israel
13. Hopital Femme Mère Enfant, Lyon, France
14. Birmingham Children's Hospital, Birmingham, UK
15. Astellas Pharma Europe Ltd, Staines, UK
16. Royal Manchester Children's Hospital, Manchester, UK