1. Department of Clinical Therapeutics, University of Athens School of Medicine, Athens, Greece
2. Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, USA
3. Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
4. Department of Hematology, Genimatas General Hospital, Athens, Greece
5. Department of Internal Medicine, University of Athens School of Medicine, Athens, Greece