[1] Univ Calif San Francisco, Dept Radiol, Neuroradiol Sect, San Francisco, CA 94143 USA
[2] Stanford Univ, Palo Alto, CA USA
[3] Univ Alabama, Comprehens Stroke Ctr, Birmingham, AL USA
[4] Univ Calif Los Angeles, Los Angeles, CA USA
[5] Addenbrookes Hosp, Dept Neurol, Cambridge, England
[6] Univ Melbourne, Royal Melbourne Hosp, Dept Neurol, Parkville, Vic 3052, Australia
[7] Mayo Clin, Phoenix, AZ USA
[8] Washington Univ, St Louis, MO USA
[9] Univ Melbourne, Natl Stroke Res Inst, Parkville, Vic 3052, Australia
[10] Duke Univ, Med Ctr, Dept Radiol, Durham, NC 27710 USA
[11] Charite Univ Hosp & Berlin, NeuroImaging Ctr BNIC, Berlin, Germany
[12] Univ Massachusetts, Sch Med, Worcester, MA 01605 USA
[13] Massachusetts Gen Hosp, Boston, MA 02114 USA
[14] Univ Heidelberg, D-6900 Heidelberg, Germany
[15] Georgetown Univ, Washington Hosp Ctr, Washington, DC USA
[16] Univ Munster, Dept Clin Radiol, Munster, Germany
[17] Univ Clin, Dept Neurol, Erlangen, Germany
[18] Natl Inst Neurol Disorders & Stroke, Bethesda, MD USA
[19] Univ Glasgow, Western Infirm, Univ Dept Med & Therapeut, Glasgow G12 8QQ, Lanark, Scotland
[20] Univ Calif Los Angeles, Los Angeles Stroke Ctr, Los Angeles, CA 90024 USA
[21] Ctr Funct Integrat Neurosci, Dept Neuroradiol, Aarhus, Denmark
[22] Univ N Carolina, Dept Neurol, Chapel Hill, NC USA
[23] Univ Clin, Dept Neurol, Erlangen, Germany
[24] Univ Michigan, Ann Arbor, MI 48109 USA
[25] Western Gen Hosp, Edinburgh EH4 2XU, Midlothian, Scotland