1. From the Department of Neurology, Medical University of South Carolina, Charleston (M.A, Y.O, S.A)
2. Department of Neurology, Washington University School of Medicine, Saint Louis, MO (S.K, J.G, M.A)
3. Department of Neurosurgery, Medical University of South Carolina, Charleston (A.A, A.S)
4. Department of Neurology, University of Tennessee Health Science Center, Memphis (N.G, A.V.A, A.P, H.M)
5. Department of Neurology, Yale University School of Medicine, New Haven, CT (N.P, S.K)
6. Department of Neurology, University Medical Center Göttingen, Germany (I.M, J.L)
7. Department of Neuroradiology, University Medical Center Göttingen, Germany (M.P)
8. Department of Neurology, Duke University Hospital, Durham, NC(O.I, S.R, C.S)
9. Department of Radiology, Washington University School of Medicine, Saint Louis, MO (A.P.K)
10. Department of Neurosurgery, Wake Forest University, Winston-Salem, NC (S.W, K.M.F)
11. Department of Radiology, Wake Forest University, Winston-Salem, NC (J.S)
12. Department of Diagnostic and Therapeutic Neuroradiology, INSERM U1254, University Hospital of Nancy, France (B.G, P.D.M., S.R.)
13. Department of Neurosurgery, Baylor College of Medicine, Houston, TX (P.K)
14. Department of Neurology, Baylor College of Medicine, Houston, TX (F.N)
15. Department of Neurology, Leeds General Infirmary, University of Leeds, United Kingdom (L.I.F)
16. Department of Neurology (J-T. K), Chonnam National University Hospital Gwangju, South Korea.
17. Department of Neurology, Stroke Unit, CIC-P 1433, INSERM U1116, University Hospital of Nancy, France (S.R.)