1. Faculty of Science, Department of Chemistry, University of Kragujevac, Kragujevac, Serbia
2. Faculty of Science, Department of Biology and Ecology, University of Kragujevac, Kragujevac, Serbia
3. Faculty of Medical Sciences, Centre for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
4. Faculty of Medical Sciences, Department of Biochemistry, University of Kragujevac, Kragujevac, Serbia
5. Faculty of Medical Sciences, Department of Internal Medicine, University of Kragujevac, Kragujevac, Serbia
6. Public Health Institute, Kragujevac, Serbia