1. Department of Neurology, Emory University School of Medicine, Atlanta, GA
2. Stroke Unit, Department of Neurology, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
3. Department of Radiology and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
4. Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Boston, MA
5. Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA
6. Department of Neurology, University of Maryland School of Medicine, Baltimore, MD
7. Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
8. Department of Neurology, Boston University School of Medicine, Boston, MA
9. Cerebrovascular Center, Cleveland Clinic, Cleveland, OH
10. Calgary Stroke Program, Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Alberta, Canada
11. Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA
12. Department of Radiology, University of Maryland School of Medicine, Baltimore, MD
13. Department of Radiology, Boston University School of Medicine, Boston, MA
14. Wellstar Neurosurgery, Kennestone Hospital, Marietta, GA