1. Department of Neurology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
2. Department of Pharmacology and Toxicology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
3. Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
4. Department of Anatomy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
5. Neurology Clinic, Clinical Center of Serbia, Belgrade, Belgrade, Serbia
6. Department of Neurology, School of Medicine, University of Belgrade, Belgrade, Serbia