1. Erciyes University Faculty of Medicine, Department of Neurology, Kayseri, Turkey

2. University of Health Sciences Turkey, Gülhane Training and Research Hospital, Clinic of Neurology, Ankara, Turkey

3. Gazi Mustafa Kemal State Hospital, Clinic of Neurology, Ankara, Turkey

4. Ankara University Faculty of Medicine, Department of Neurology, Ankara, Turkey