1. Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
2. Neuroscience, Clinical Effectiveness and Public Health Research Group Universidad Científica del Sur Lima Peru
3. Department of Endovascular Neurological Surgery University of Pittsburgh Medical Center Pittsburgh PA
4. Interventional MR Clinical R&D Institute Ankara University Ankara Turkey
5. National MR Research Center (UMRAM) Bilkent University Ankara Turkey
6. Radiology Department Medical Faculty Ankara University Ankara Turkey
7. Department of Neurosurgery Medical Faculty Bahcesehir University Istanbul Turkey
8. Department of Radiology Ataturk Sanatorium Training and Research Hospital Ankara Turkey
9. Department of Neurological Surgery Montefiore Medical Center Bronx NY
10. Department of Neurology, Neurosurgery & Radiology University of Iowa Hospitals and Clinics Iowa City IA