1. Department of Hematology, Jagiellonian University Medical College, Cracow, Poland;
2. Department of Hematology, Hospital Universitario de Salamanca, Salamanca, Spain;
3. Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany;
4. Weill Cornell Medical College, New York, NY, USA;
5. Washington University School of Medicine, Saint Louis, MO, USA;
6. Division of Hematology, Clinical Hospital Merkur, Zagreb, Croatia;
7. Queen Mary Hospital, University of Hong Kong, Hong Kong;
8. School of Medicine in Katowice Department of Hematology and Bone Marrow Transplantation, Silesian Medical University, Katowice, Poland;
9. Department of Hematology Oncology and Internal Medicine, Warsaw Medical University, Warsaw, Poland;
10. Hospital Universitario Professor Edgar Santos, Salvador, Brazil;
11. Department of Hematooncology University Hospital Ostrava and Faculty of Medicine University of Ostrava, Ostrava, Czech Republic;
12. Department of Hematology, Medical University of Lodz, Memorial, Hospital Lodz, Poland Copernicus;
13. Department of Hematology, State Hospital, Cracow, Poland;
14. Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland;
15. Haematology Centre Karolinska, Karolinska University Hospital, Stockholm, Sweden;
16. Rutgers New Jersey Medical School, Newark, NJ, USA;
17. Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA;
18. John Theurer Cancer Center Hackensack University Medical Center, Hackensack, NJ, USA