1. Diskapi Education and Research Hospital, Department of Haematology, Ankara, Turkey
2. Diskapi Education and Research Hospital, Department of Pathology, Ankara, Turkey
3. Turkiye Yuksek Ihtisas Education and Research Hospital, Department of Gastroenterology, Ankara, Turkey
4. Hacettepe University Medical School, Department of Internal Medicine, Ankara, Turkey
5. Fatih University Medical School, Department of Internal Medicine and Haematology, Ankara, Turkey
6. Okmeydanı Education and Research Hospital, Department of Haematology, Istanbul, Turkey
7. Ankalab Laboratories, Department of Biochemistry, Ankara, Turkey