1. Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
2. Internal Medicine and Vascular Disease Unit, AP-HP Hôpital Saint-Louis, Paris 7 University, France
3. Department of Medical Decision Making, Leiden University Medical Center, Leiden, the Netherlands
4. Department of Rheumatology, The James Cook University Hospital, Middlesbrough, United Kingdom
5. Service d’Hématologie Clinique et de Thérapie Cellulaire, AP-HP Hôpital Saint-Antoine, Paris 6 University, Paris, France
6. Clinical Investigation Center in Biotherapies and Cell Therapy Unit, AP-HP Hôpital Saint-Louis, Paris 7 University, France
7. Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
8. Department of Hematology, Leiden University Medical Center, Leiden, the Netherlands
9. Department of Rheumatology, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
10. Department of Hematology, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
11. Department of Biomedicine, Division of Rheumatology AOUC and Department of Experimental and Clinical Medicine, University of Florence, Florence
12. Department of Rheumatology, VU University Medical Center, Amsterdam, the Netherlands
13. Department of Hematology, VU University Medical Center, Amsterdam, the Netherlands
14. Department of Rheumatology, University Hospital Basel, Basel, Switzerland
15. Department of Internal Medicine II, University Hospital, Tübingen, Germany
16. Department of Clinical Immunology, Strasbourg University Hospital, Strasbourg, France
17. Service d'Hématologie et d'Oncologie, Unité de Greffe de Cellules Souches Hématopoïétiques, Centre Hospitalier Universitaire Hautepierre, Strasbourg, France
18. 2.Medizinische Abteilung Krankenhaus der Barmherzigen Brüder Trier, Trier, Germany
19. Department of Dermatology, Venereology, and Allergology, HELIOS St. Elisabeth Hospital Oberhausen, Oberhausen,Germany
20. Service Médecine Interne, Hôpital Pierre Zobda Quitman, Fort-de France, Martinique
21. Department of Internal Medicine CHU La Conception, Assistance Publique-Hôpitaux de Marseille, Marseille, France
22. Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
23. Klinische Abteilung für Rheumatologie, Medizinische Universität, Vienna, Austria
24. Pôle Pluridisciplinaire de Médecine, Centre Hospitalier Universitaire de Grenoble, Grenoble, France
25. Division of Rheumatology and Clinical Immunology, University Medical Center Freiburg, Freiburg, Germany
26. Service Médecine Interne, Centre Hospitalier Universitaire Toulouse
27. Service Médecine Interne et Médecine Vasculaire, Hôpital St-André, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
28. Department of Rheumatology and Clinical Immunology, University of Würzburg Medical Center, Würzburg, Germany
29. Day Hospital Reumatologia, Ospedale G. Pini, Milan, Italy
30. Department of Hematology, Cell and Gene Therapy Center, George Papanicolaou Hospital, Thessaloniki, Greece
31. Department of Rheumatology, University Hospital Frankfurt, Frankfurt, Germany
32. Service de Médecine Interne, Hôpital Claude-Huriez, Lille, France
33. Section and Unit of Rheumatology, Department of Medical Sciences, University of Ferrara, Italy
34. Service de Médecine Interne, Centre Hospitalier Universitaire Estaing, Clermont-Ferrand, France
35. Department of Internal Medicine, Montpellier University Hospital, Montpellier, France
36. Centre Hospitalier de l’Université de Montréal, Montréal, Québec, Canada
37. Skeletal Biology and Engineering Research Center, Department of Development and Regeneration KU Leuven, Rheumatology, University Hospitals, Leuven, Belgium
38. Department of Rheumatology, Freeman Hospital, Newcastle upon Tyne, United Kingdom
39. Department of Hematology, Careggi University Hospital, Florence, Italy
40. Department of Rheumatology, Maartenskliniek, Nijmegen, the Netherlands
41. Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, the Netherlands
42. Hematology/Transplantation, AP-HP Hôpital Saint-Louis, Paris 7 University, France
43. Department of Hematology, University Hospital Basel, Basel, Switzerland