1. Department of Neurology and Algology, Gazi University School of Medicine, Turkey
2. Neuropsychiatry Centre, Gazi University School of Medicine, Turkey
3. Department of Neurology, Mersin University School of Medicine, Turkey
4. Department of Biostatistics, Mersin University School of Medicine, Turkey
5. Istanbul University, Cerrahpaşa School of Medicine, Turkey
6. Çukurova University School of Medicine, Turkey
7. Baskent University Faculty of Medicine, Turkey
8. Department of Second Neurology, Bakırkoy Training Hospital, Turkey