1 Department of Pediatric Neurology, Vali-E-Asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
2 Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran.
3 Department of Neurology, School of Medicine, Rasool Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
4 Skull Base Research Center, Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran.
5 Department of Neurology, School of Medicine, Rasool Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. maziar.emamikhah@yahoo.com.