1. Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
2. First Department of of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
3. Theageneion Cancer Center, Thessaloniki, Greece
4. Department of Hematology, University of Patras School of Medicine, Patras, Greece
5. Metaxa Cancer Center, Piraeus, Greece
6. Department of Hematology, G. Genimatas Hospital, Athens, Greece
7. Department of Hematology and Bone Marrow Transplant, Evangelismos Hospital, Athens, Greece
8. School of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
9. Second Department of Internal Medicine, National and Kapodistrian University of Athens, Haidari, Greece
10. Department of Hematology, University of Ioannina School of Medicine, Ioannina, Greece
11. Henry Dunant Hospital, Athens, Greece