1. Claude Bernard University Lyon France
2. Department of Hematology and Medical Oncology Centre Léon Bérard Lyon France
3. Department of Hematology Hospices Civils de Lyon Lyon France
4. Department of Hematology and Cell Therapy University Hospital of Bordeaux Bordeaux France
5. Department of Hematology and Cell Therapy Estaing University Hospital Clermont‐Ferrand France
6. Department of Hematology and Cell Therapy University Hospital of Tours Tours France
7. Department of Hemato‐Oncology Institut Paoli Calmette Marseille France
8. Department of Hematology Cochin Hospital Paris France
9. Department of Hematology and French Reference Center for Thrombotic Microangiopathies Saint‐Antoine Hospital Paris France
10. University of France‐Comté Besançon France
11. Department of Hematology University Hospital of Besançon Besançon France
12. University of Angers Angers France
13. Department of Hematology University Hospital of Angers Angers France
14. Department of Clinical Hematology University Hospital of Rennes Rennes France
15. University of Grenoble Grenoble France
16. Department of Hematology University Hospital of Grenobles Alpes Grenoble France
17. University of Dijon Dijon France
18. Department of Clinical Hematology University Hospital of Dijon Dijon France
19. University of Lille Lille France
20. Department of Hematology University Hospital of Lille Lille France
21. Department of Biostatistics Hospices Civils de Lyon Lyon France