1. Department of Pediatrics, University of Debrecen, Debrecen 4012, Hungary
2. Institute of Laboratory Medicine, University of Debrecen, Debrecen 4012, Hungary
3. Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen 4012, Hungary
4. Fresenius Medical Care, NephroCare University of Debrecen, Debrecen 4012, Hungary
5. HAS-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Debrecen 4012, Hungary