1. The Centre for Research and Science, Faculty of Health Sciences, Palacký University Olomouc, Olomouc, Czech Republic
2. Neurology Clinic, University Hospital, Hradec Králové, Czech Republic
3. 2nd Internal Clinic of Gastroenterology and Geriatrics, University Hospital, Olomouc, Czech Republic
4. Neurology Clinic, University Hospital, Ostrava, Czech Republic