1. Laboratory of Hematology and Hospital Blood Transfusion Department, University General Hospital ‘Attikon’, Medical School, National and Kapodistrian University of Athens, Chaidari Attica, Greece
2. Hematology Department-BMT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
3. Medical School, University of Athens, Athens, Greece
4. Laboratory of Thrombosis, Bleeding Disorders and Anticoagulation Monitoring, Medical Centre of Psychico, Athens, Greece
5. Department of Transfusion Service and Clinical Hemostasis, ‘Saint Savvas’ Oncology Hospital, Athens, Greece