1. Department of Physiology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
2. Institute of Physiology and Biochemistry “Ivan Djaja”, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
3. Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, 18000 Niš, Serbia
4. Department of Pathology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
5. Department of Histology and Embryology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
6. School of Medicine, University of Belgrade, 11080 Belgrade, Serbia
7. Department of Nephrology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
8. Institute for Biochemistry, Faculty of Medicine, University of Niš, 18000 Niš, Serbia