1. Hematology Section and Laboratory, Department of Clinical Therapeutics, University of Athens School of Medicine, Athens, Greece, and the Department of Pathology, Karolinska Institutet, Stockholm, Sweden.
2. Hematology Section and Laboratory, Department of Clinical Therapetstics, University of Athens Medical School, Alexandra Hospital, Athens, Greece
3. Department of Clinical Therapeutics, University of Athens Medical School, Athens, Greece
4. Department of Pathology, Karolinska Institute, Stockholm, Sweden