1. Hematopoietic stem cell transplantation UnitIstituto Giannina Gaslini Genoa Italy
2. French reference center for aplastic anemia and PNH;Saint‐Louis HospitalUniversité de Paris Paris France
3. King Faisal Hospital and Research Centre Riyadh Saudi Arabia
4. EBMT Statistical Unit Leiden The Netherlands
5. EBMT Data Office Leiden The Netherlands
6. IHOP Lyon France
7. King Hussein Cancer Centre Amman Jordan
8. St. Anna Kinderspital Vienna Austria
9. UniversitätsKlinikum Dresden, TU Dresden Germany
10. Pediatric Hematology and OncologyUniversity Children´s Hospital Muenster Muenster Germany
11. Fondazione IRCSS Policlinico San Matteo Pavia Italy
12. First State Medical University St. Petersburg Russia
13. Hopital d'Enfants de la Timone Marseille France
14. Hannover Medical School Hannover Germany
15. Hacettepe University Children's Hospital Ankara Turkey
16. CHU Lille, Service d'hématologie Pédiatrique Lille France
17. Sheffield Childrens NHS Foundation Trust Sheffield UK
18. Immunologie und IntensivmedizinKlinikum der Johann‐Wolfgang Goethe Universität, Klinik für Kinder‐und Jugendmedizin, Schwerpunkt Stammzelltransplantation Frankfurt am Main Germany
19. HUCH Comprehensive Cancer Center Helsinki Finland
20. Hospital Sirio‐Libanes Brazil
21. Bordeaux Groupe Hospitalier Pellegrin‐Enfants Bordeaux France
22. Hospital Infantil Universitario "Niño Jesus" Madrid Spain
23. The Children's Hospital at Westmead Sydney Australia
24. Ribeirao Preto Medical School Sao Paulo Brazil
25. IRCSS OspedalePediatrico Bambino Gesù, SapienzaUniversity of Rome Rome Italy
26. University Hospital Eppendorf Hamburg Germany
27. UOC EmatologiaIstituto Giannina Gaslini Genoa Italy
28. Università Federico II Naples Italy