1. Department of Haematological Medicine King’s College HospitalNational Institute of Health Research/Wellcome King’s Clinical Research Facility and King’s College London London UK
2. Department of Haematology Leeds Teaching Hospitals Leeds UK
3. Radboudumc Nijmegen the Netherlands
4. Sunnybrook Health Sciences Centre Toronto ON Canada
5. Department of Hematology Hospital Clinico Universitario San CarlosThe Clınic Institute of Haematological and Oncological Diseases Madrid Spain
6. Department of Hematology Hospital Clinic de Barcelona Barcelona Spain
7. Hospital Universitario Puerta de Hierro Majadahonda Madrid Spain
8. Jane Anne Nohl Division of Hematology Keck School of Medicine University of Southern California Los Angeles CA USA
9. Monklands Hospital Airdrie Scotland UK
10. NTT Medical Center Tokyo Tokyo Japan
11. Department of Experimental and Clinical Medicine University of Florence Florence Italy
12. The John Hopkins University School of Medicine Baltimore MD USA
13. Alexion Pharmaceuticals, Inc. Boston MA USA
14. Department of Hematology West German Cancer Center University Hospital Essen Essen Germany
15. Department of Hematology Seoul St. Mary’s HospitalThe Catholic University of Korea Seoul Republic of Korea
16. Bone Marrow Transplantation UnitSaint Louis HospitalAssistance Publique–Hôpitaux de Paris Paris France
17. French Reference Center for Aplastic Anemia and Paroxysmal Nocturnal Hemoglobinuria Saint Louis Hospital and University Paris Diderot Paris France
18. Severe Aplastic Anemia Working Party of the European Group for Blood and Marrow Transplantation Leiden the Netherlands