1. Division of Hematology, Mayo Clinic, Rochester, Minnesota USA;
2. Hospital of Bolzano, Department of Hematology & Center of Bone Marrow Transplantation, Bolzano, Italy;
3. Department of Hematology and Oncology, University Hospital Innsbruck, Innsbruck, Austria;
4. University Hospital of Crete, Heraklion, Greece;
5. Athens Medical Center-Psychikon Branch, Athens, Greece;
6. Oncology Institute of Southern Switzerland, Bellinzona, Switzerland;
7. Hematology Unit, Department of Internal Medicine, Ospedale degli Infermi, Biella, Italy;
8. Division of Hematology, Department of Translational Medicine, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy;
9. Hospital Clínic, Hematology, Barcelona, Spain;
10. Cancer Research UK Centre, Southampton, United Kingdom;
11. Dipartimento Biotecnologie Cellulari ed Ematologia, Universitá La Sapienza, Rome, Italy;
12. European Institute of Oncology, Division of Clinical Haemato-Oncology, Milan, Italy;
13. APHP, Saint-Louis Hospital, Hemato-Oncology, and Diderot University-Sorbonne Paris Cité, Paris, France;
14. Division of Hematopathology, Mayo Clinic, Rochester, Minnesota USA;
15. Département de Pathologie, Groupe Henri Mondor-Albert Chenevier, AP-HP, Creteil, France;
16. Diagnostic Haematopathology, European Institute of Oncology, Milan, Bologna University School of Medicine, Bologna, Italy;
17. St. James's University Hospital, Leeds, United Kingdom;
18. Hospital Clinic, Anatomia Patologica, IDIBAPS, Barcelona, Spain;
19. ICP Locarno, Locarno, Switzerland