1. Department of Neurosurgery, Section of Neurovascular Intervention, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
2. Department of Neurosurgery, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
3. Department of Neurosurgery, Razavi Hospital, Mashhad, Iran
4. Department of Neurology, Vali-e-Asr Hospital, Tehran, Iran