1. Jagiellonian University Medical College; Cracow Poland
2. Department of Hematooncology and Bone Marrow Transplantation; Medical University of Lublin; Lublin Poland
3. Department of Hematology; St. John's Cancer Center; Lublin Poland
4. Azienda Ospedaliera Universitaria Senese; Siena Italy
5. Santa Casa Medical School; Sao Paulo Brazil
6. Washington University School of Medicine; St. Louis Missouri
7. Centre Hospitalier Universitaire de Liege; Liege Belgium
8. University Hospital Wuerzburg; Wuerzburg Germany
9. Winship Cancer Institute; Emory University; Atlanta Georgia
10. John Theurer Cancer Center at Hackensack UMC, New Jersey and Georgetown University; Washington DC
11. Fremantle Hospital; Fremantle Australia
12. Maria Sklodowska-Curie Institute - Oncology Center; Warsaw Poland
13. Fondazione IRCCS Policlinico San Matteo, University of Pavia; Pavia Italy
14. Cliniques Universitaires Saint-Luc; Brussels Belgium
15. Ankara University Medical School; Ankara Turkey
16. Hopital La Miletrie; CHU Poitiers; France
17. Hospital Universitario de Salamanca; Salamanca Spain
18. University of Maryland Medical Center; Baltimore Maryland
19. Weill Cornell Medical College; New York New York
20. Odense University Hospital; Odense Denmark
21. National and Kapodistrian University of Athens; Athens Greece
22. Hospital Italiano de Buenos Aires; Buenos Aires Argentina
23. University Hospital Olomouc; Olomouc Czech Republic
24. Wroclaw Medical University; Wroclaw Poland
25. Levine Cancer Institute/Carolinas HealthCare System; Charlotte NC
26. Karolinska University Hospital; Stockholm Sweden
27. Queen Mary Hospital; University of Hong Kong; Hong Kong
28. Royal Victoria Hospital; McGill University; Montreal Canada
29. Medical University; Warsaw Poland
30. Columbia University Medical Center; New York New York
31. Provincial Hospital; Zielona Gora Poland
32. Silesian Medical University; Katowice Poland
33. Pomeranian Medical University; Szczecin Poland
34. Memorial Sloan-Kettering Cancer Center; New York New York
35. Norwegian University of Science and Technology; Trondheim Norway
36. Vejle Hospital; Vejle Denmark
37. Gunma University Graduate School of Health Sciences; Gunma Japan
38. VU University Medical Center; Amsterdam the Netherlands
39. Dana-Farber Cancer Institute; Harvard Medical School; Boston Massachusetts