1. Department of Hematology, Laikon General Hospital; National and Kapodistrian University of Athens; Athens Greece
2. Hematology and Bone Marrow Transplantation Department; General Hospital of Thessaloniki Papanikolaou; Thessaloniki Greece
3. 2nd Department of Internal Medicine, Faculty of Medicine, ATTIKON General University Hospital; National and Kapodistrian University of Athens, Medical School; Athens Greece
4. Department of Hematology; Evaggelismos General Hospital; Athens Greece
5. Third Department of Medicine, “Sotiria” General Hospital of Thoracic Diseases, Hematology Unit; National and Kapodistrian University of Athens, Medical School; Athens Greece
6. 1st Department of Propedeutic Internal Medicine, Laikon General Hospital; National and Kapodistrian University of Athens, Medical School; Athens Greece
7. Department of Hematology, Larissa University Hospital; University of Thessalia; Larissa Greece
8. Department of Hematology; Athens Medical Center; Athens Greece
9. Department of Hematology, Heraklion University Hospital; University of Crete; Heraklion Greece
10. Department of Hematology; Democritus University of Thrace Medical School; Alexandroupolis Greece
11. Bone Marrow Transplantation Unit; University of Patras; Patras Greece
12. Department of Clinical Hematology; “G.Gennimatas” Athens General Hospital; Athens Greece
13. Department of Hematology; Air Force Hospital; Athens Greece
14. Department of Hematology; Metaxa Hospital; Pireaus Greece
15. Department of Hematology, Ioannina University Hospital; University of Ioannina; Ioannina Greece
16. Department of Hematology; 401 Military Hospital of Athens; Athens Greece
17. Hygeia General Hospital; Athens Greece