M Çabalar1, F Başkan2, H A Erdoğan3, A Bulut4, V Yayla5. 1. Department of Neurology, Ministry of Health Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey. mcabalar@gmail.com. 2. Department of Neurology, Ministry of Health Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey. fikret.baskan@beah.gov.tr. 3. Department of Neurology, Ministry of Health Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey. drhaciali@gmail.com. 4. Department of Neurology, Ministry of Health Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey. dranilbulut@gmail.com. 5. Department of Neurology, Ministry of Health Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey. vildanyayla@yahoo.com.