1. Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
2. Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
3. Institute of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
4. Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary