1. Department of Neurology, Faculty of Medicine and University Hospital Hradec Králové, Charles University in Prague, Hradec Králové, Czech Republic
2. Department of Neurology, Faculty of Medicine and University Hospital Plzeň, Charles University in Prague, Plzeň, Czech Republic
3. Faculty of Science, Department of Chemistry, University of Hradec Králové, Hradec Králové, Czech Republic
4. Department of Neurology, University Hospital and Masaryk University, Brno, Czech Republic
5. Department of Neurology, Faculty of Medicine, Palacky University and University Hospital Olomouc, Olomouc, Czech Republic