1. University College London Great Ormond Street Institute of Child Health and Great Ormond Street Hospital for Children NHS Foundation Trust London UK
2. University of Liverpool Liverpool UK
3. St. Joan de Déu Hospital Barcelona Spain
4. Alder Hey Children’s NHS Foundation Trust Liverpool UK
5. Great Ormond Street Hospital for Children NHS Foundation Trust London UK
6. Royal Manchester Children’s Hospital Manchester UK
7. Hacettepe University Ankara Turkey
8. Bangor University Bangor UK
9. General University Hospital in Prague and Charles University Prague Czech Republic
10. Lancaster University Lancaster UK
11. University of Cambridge Cambridge UK
12. Instituto Giannina Gaslini IRCCS UOSID Centro Trial Genoa Italy