1. Department of Hematology Athens University School of Medicine at Laikon General Hospital Athens Greece
2. Department of Laboratory Hematology Athens Regional General Hospital "G. Gennimatas" Athens Greece
3. Department of Immunology Athens Regional General Hospital "G. Gennimatas" Athens Greece
4. Flowdiagnosis” Laboratory Center Athens Greece
5. HematologyLaboratoryLaikon General Hospital Athens Greece