1. Second Department of Internal Medicine and Research Unit; University General Hospital “Attikon”, 1 Rimini St., Haidari; Athens 12462 Greece
2. Department of Biochemistry and Molecular Biology; National and Kapodistrian University of Athens, Panepistimiopolis; Athens 15701 Greece
3. Department of Hematology; Democritus University of Thrace Medical School, University Hospital of Alexandroupolis; Alexandroupolis Greece
4. The Hellenic (Greek) MDS Study Group
5. General University Hospital of Patras, Rio Patron; Patras 26500 Greece
6. General Hospital of Athens “G. Gennimatas”, Mesogeion 154; Athens 11527 Greece
7. University Hospital of Ioannina; Ioannina 45100 Greece
8. Department of Hematology; “Metaxa” Piraeus Cancer Hospital; Piraeus Greece
9. Mesogeion and Kanellopoulou 1; “401” Army General Hospital of Athens; Athens 11525 Greece
10. 1 Department of Internal Medicine; National and Kapodistrian University of Athens; Athens Greece
11. Department of Haematology; National and Kapodistrian University of Athens, Laikon General Hospital; Athens Greece
12. General Hospital of Patras “Agios Andreas”, Tsertidou 1; Patras 26335 Greece
13. University General Hospital of Heraklion, Voutes; Heraklion 71110 Greece
14. Department of Clinical Therapeutics; National and Kapodistrian University of Athens, School of Medicine; Athens Greece
15. University General Hospital of Larissa, Mezourlo; Larissa 41110 Greece
16. 1 Propaedeutic Department of Internal Medicine; National and Kapodistrian University of Athens; Athens Greece