1. Department of Clinical Therapeutics; School of Medicine; National and Kapodistrian University of Athens; Athens Greece
2. Hematology Division; Department of Internal Medicine; University of Patras; Patras Greece
3. Department of Hematology; School of Medicine; University of Thessaly; Larisa Greece
4. Department of Hematology; Theagenion Cancer Center; Thessaloniki Greece
5. Department of Hematology and Bone Marrow Transplantation Unit; Evangelismos Hospital; Athens Greece
6. Department of Hematology; Metaxa Cancer Hospital; Piraeus Greece