1. Hematology Department; Theagenion Cancer Hospital; Thessaloniki Greece
2. Department of Clinical Therapeutics; National and Kapodistrian University of Athens, School of Medicine; Athens Greece
3. Hematology Department; General Hospital “G. Papanikolaou,”; Thessaloniki Greece
4. Hematology Department; General Anticancer Hospital “Metaxa,”; Athens Greece
5. Hematology Department; General Hospital of Athens “Evangelismos,”; Athens Greece
6. First Department of Propedeutic/Internal Medicine; National and Kapodistrian University of Athens, School of Medicine; Athens Greece
7. Hematology Division; University of Patras Medical School; Patras Greece
8. Hematology Department; University of Thessalia; School of Medicine; Larissa Greece
9. Hematology Department; General Hospital of Athens “Amalia Fleming,”; Athens Greece
10. Department of Hematology; 251 General Air-Force Hospital; Athens Greece