1. Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
2. Faculty of Economics, University of Belgrade, 11000 Belgrade, Serbia
3. Department of Radiology, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
4. Department of Anatomy, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
5. Department of Social Medicine, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
6. Medical Faculty of the Military Medical Academy, University of Defence in Belgrade, 11000 Belgrade, Serbia
7. Centre for Clinical Pharmacology, Military Medical Academy, 11000 Belgrade, Serbia