1. Immunology Department, Microbiology Laboratory; AHEPA University Hospital; Thessaloniki Greece
2. Pathology Department, Faculty of Medicine; Aristotle University of Thessaloniki; Thessaloniki Greece
3. Haematology Department, Microbiology Laboratory; AHEPA University Hospital; Thessaloniki Greece
4. Haematology Department, First Propedeutic Department of Internal Medicine; AHEPA University Hospital, Aristotle University of Thessaloniki; Thessaloniki Greece
5. Haematology Department, First Department of Internal Medicine; AHEPA University Hospital, Aristotle University of Thessaloniki; Thessaloniki Greece