1. Division of Endovascular Neurosurgery Department of Neurological Surgery Keck School of Medicine University of Southern California (USC Los Angeles CA USA
2. Clinical Neurology Research Center Shiraz University of Medical Sciences Shiraz Iran
3. Department of Neurology Cone Health Greensbro NC USA
4. Department of Neurosurgery University of Texas Health Science Center at San Antonio San Antonio TX USA
5. Department of Neurology University at Buffalo State University of New York Buffalo NY USA
6. Departments of Neurology and Neurosurgery University of Cincinnati Medical Center Cincinnati OH USA