1. Division of Haematology, Department of Internal Medicine, Istanbul University, Cerrahpasa Medical Faculty, Cerrahpasa Cd., No. 181, Kocamustafapasa-Fatih, 34098 Istanbul, Turkey
2. Division of Haematopathology, Department of Pathology, Istanbul University, Cerrahpasa Medical Faculty, Istanbul, Turkey
3. Department of Biostatistics, Hacettepe University Medical Faculty, Ankara, Turkey
4. Department of Infectious Diseases, Koç University Medical School, Istanbul, Turkey