[1] Monash Med Ctr, Melbourne, Vic, Australia
[2] Columbia Univ, Dept Radiol & Neurol Surg, New York, NY USA
[3] Massachusetts Gen Hosp, Neuro Endovasc Program, Boston, MA 02114 USA
[4] Univ Cincinnati, Dept Neurosurg, Cincinnati, OH USA
[5] Dartmouth Hitchcock Med Ctr, Dept Radiol Neurol & Neurosurg, Lebanon, NH 03766 USA
[6] Cleveland Clin, Cerebrovasc Ctr, Cleveland, OH 44106 USA
[7] Univ Chicago, Dept Radiol, Chicago, IL 60637 USA
[8] Wayne State Univ, Sch Med, Dept Neurosurg, Detroit, MI USA
[9] Wayne State Univ, Sch Med, Dept Neurol, Detroit, MI 48201 USA
[10] Yale Univ, Sch Med, Dept Neurosurg, New Haven, CT USA
[11] Univ Med & Dent New Jersey, New Jersey Med Sch, Neurol Inst New Jersey, Newark, NJ 07103 USA
[12] Stanford Univ, Med Ctr, Dept Radiol & Neurosurg, Stanford, CA 94305 USA
[13] Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Neurol Surg, Newark, NJ 07103 USA
[14] Barrow Neurol Inst, Div Neurol Surg, Phoenix, AZ 85013 USA
[15] Radiol Imaging Associates, Dept Intervent Neuroradiol, Englewood, CO USA
[16] Univ Saskatchewan, Royal Univ Hosp, Dept Neurosurg, Saskatoon, SK, Canada
[17] Univ So Calif, Dept Neurosurg, Los Angeles, CA USA
[18] UT Southwestern, Dept Neuroradiol, Dallas, TX USA
[19] Brown Univ, Warren Alpert Sch Med, Providence, RI 02912 USA