1. Department of Otorhinolaryngology, Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Tehran, Iran
2. Division of Neuroradiology, Department of Radiology, Amir Aalam Hospital, Tehran University of Medical Sciences, Tehran, Iran
3. Department of Radiology, Amir Aalam Hospital, Tehran University of Medical Sciences, Tehran, Iran
4. Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran