1. 1Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
2. 2Translational Hematology and Oncology Research Department, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH
3. 3EBMT Leiden Study Unit, Leiden, The Netherlands
4. 4Department of Hematology, Centre Hospitalier Lyon Sud, Lyon, France
5. 5CHU de Lille, University of Lille, INSERM U1286, INFINITE, Lille, France
6. 6RVI Newcastle, Newcastle, United Kingdom
7. 7University Hospital of Basel, Basel, Switzerland
8. 8CHU Grenoble Alpes, Université Grenoble Alpes, Grenoble, France
9. 9Yorkshire Blood & Marrow Transplant Program, Leeds, United Kingdom
10. 10CHU Nice, Hôpital de l`Archet I, Nice, France
11. 11Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
12. 12Department of Haematology, University Medical Centre, Utrecht, The Netherlands
13. 13Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy
14. 14Department of Oncology and Hematology, University of Milan and Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
15. 15King's College Hospital, London, United Kingdom
16. 16Department of Haematology, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
17. 17EBMT Paris Study Unit, Paris, France
18. 18ASST Fatebenefratelli-Sacco, University of Milan, Milan, Italy
19. 19University of Cologne, Cologne, Germany
20. 20Rheumatology and Clinical Immunology, ASST Spedali Civili of Brescia and Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
21. 21Sorbonne Université, Assistance Publique–Hôpitaux de Paris, Hôpital Saint Antoine, Service de médecine interne et Inflammation-Immunopathology-Biotherapy Department, Paris, France
22. 22Department of Clinical Immunology and Allergy, Leeds Teaching Hospitals, NHS Trust, Leeds, United Kingdom
23. 23University Clinical Centre, Medical University of Warsaw, Warsaw, Poland
24. 24Department of Haematology, Sheffield Teaching Hospitals NHS Foundation Trust, Royal Hallamshire Hospital, Sheffield, United Kingdom
25. 25University College London Hospitals NHS Trust, London, United Kingdom
26. 26Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany
27. 27Hopital St. Louis, Paris, France
28. 28Unit of Hematology and Bone Marrow Transplantation, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy