1. Division of Vascular and Endovascular Neurosurgery, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran;
2. Department of Neurosurgery, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran;
3. Department of Neurosurgery, Geisinger Health System, Danville, PA, USA;
4. Research Institute of Neurointervention, Paracelsus Medical University, Salzburg, Austria;
5. Pacific Northwest University of Health Sciences, Yakima, WA, USA;
6. Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran