1. Hematology Department, Jagiellonian University Medical College, Cracow, Poland;
2. Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA;
3. Tel Aviv Medical Center, Tel Aviv, Israel;
4. Department of Infectious and Tropical Diseases, Jagiellonian University Medical College, Cracow, Poland;
5. Hospital Universitario de Salamanca, Salamanca, Spain;
6. Washington University School of Medicine, Saint Louis, MO, USA;
7. Le Scotte Hospital, Siena, Italy;
8. Department of Hematology, St John’s Cancer Center, Lublin, Poland;
9. Department of Experimental Hematology, Medical University of Lublin, Lublin, Poland;
10. Division of Hematology, Clinical Hospital Merkur, Zagreb, Croatia;
11. Department of Haematology and Bone Marrow Transplantation, Medical University of Lublin, Lublin, Poland;
12. Department of Hematology, Oncology and Internal Medicine, Warsaw Medical University, Warsaw, Poland;
13. Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland;
14. Hematology Department and Bone Marrow Transplantation Unit, Ankara University Medical School, Ankara, Turkey;
15. Ospedale A. Perrino, Haematology, Brindisi, Italy;
16. Department of Internal Medicine and Hematology, Military Institute of Medicine, Warsaw, Poland;
17. Weill Cornell Medical College, New York, NY, USA;
18. Department of Hematology, Nicolaus Copernicus Hospital, Torun, Poland;
19. Department of Medicine, Section of Hematology, Vejle, Denmark;
20. Faculty of Medicine, University Hospital Ostrava, University of Ostrava, Ostrava, Czech Republic;
21. Department of Hematology, UZ Leuven, Leuven, Belgium;
22. Teaching Hospital No. 1, Rzeszów, Poland;
23. Seccion Hematologia Adultos, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina;
24. Norwegian University of Science and Technology, St. Olav’s Hospital, Trondheim, Norway;
25. Hospital Universitario Professor Edgar Santos, Salvador, Brazil;
26. Division of Hematology and Oncology, Dana-Farber Cancer Institute at St. Elizabeth’s Medical Center, Brighton, MA, USA;
27. Rutgers New Jersey Medical School, Newark, NJ, USA;
28. John Theurer Cancer Center, Myeloma Division, Hackensack University Medical Center, Hackensack, NJ, USA