[1] McMaster Univ, Dept Hlth Res Methods Evidence & Impact, Hamilton, ON, Canada
[2] Univ Toronto, St Michaels Hosp, Dept Med, Div Neurol,Unity Hlth Toronto, Toronto, ON, Canada
[3] Unity Hlth Toronto, St Michaels Hosp, Li Ka Shing Knowledge Inst, Toronto, ON, Canada
[4] Univ Toronto, Unity Hlth Toronto, St Michaels Hosp, Div Diagnost & Therapeut Neuroradiol,Dept Med Ima, Toronto, ON, Canada
[5] Univ Ottawa, Ottawa Hosp, Dept Med, Div Neurol,Res Inst, Ottawa, ON, Canada
[6] McMaster Univ, Dept Surg, Div Neurosurg, Hamilton, ON, Canada
[7] Univ Toronto, Sunnybrook Hlth Sci Ctr, Dept Med, Div Neurol, Toronto, ON, Canada
[8] Univ Toronto, Univ Hlth Network, Toronto Western Hosp, Joint Dept Med Imaging JDMI,Div Intervent Neurora, Toronto, ON, Canada
[9] Univ Calgary, Dept Radiol, Calgary, AB, Canada
[10] Trillium Hlth Partners, Div Neurointervent Neuroradiol, Div Neurosurg, Mississauga, ON, Canada
[11] Univ Calgary, Cumming Sch Med, Dept Clin Neurosci, Calgary, AB, Canada
[12] Univ Montreal, Fac Med, Dept Neurosci, Montreal, PQ, Canada
[13] Univ Toronto, Unity Hlth, Dept Med Imaging, Div Diagnost Neuroradiol,St Michaels Hosp, Toronto, ON, Canada
[14] Univ Toronto, St Michaels Hosp, Unity Hlth Toronto, Dept Med Imaging, Toronto, ON, Canada
[15] Univ British Columbia, Vancouver Gen Hosp, Dept Surg, Div Neurosurg, Vancouver, BC, Canada
[16] Koseikai Takeda Hosp, Dept Neurosurg, Kyoto, Japan
[17] Fdn Rothschild Hosp, Dept Intervent Neuroradiol, Paris, France
[18] Univ Hlth Network, Toronto Gen Hosp, Toronto, ON, Canada
[19] Ctr Hosp Univ Montreal, Dept Radiol, Montreal, PQ, Canada
[20] Univ Calgary, Hotchkiss Brain Inst, Dept Clin Neurosci, Calgary, AB, Canada
[21] Univ Calgary, Hotchkiss Brain Inst, Dept Radiol, Calgary, AB, Canada
[22] Univ Calgary, Hotchkiss Brain Inst, Dept Community Hlth Sci, Calgary, AB, Canada
[23] Univ Calgary, OBrien Inst Publ Hlth, Cumming Sch Med, Calgary, AB, Canada
[24] Univ Laval, Ctr Hosp Quebec, Dept Surg Neurosurg, Quebec City, PQ, Canada
[25] Northern Ontario Sch Med, Div Clin Sci, Hlth Sci North, Sudbury, ON, Canada
[26] Queens Univ, Kingston Hlth Sci Ctr, Dept Radiol, Kingston, ON, Canada
[27] McMaster Univ, Hamilton Gen Hosp, Dept Med, Div Neurol, Hamilton, ON, Canada
[28] Univ Montreal, Dept Radiol Radiooncol & Med Nucl, Montreal, PQ, Canada
[29] Univ Toronto, Univ Hlth Network, Toronto Western Hosp, Div Neurol,Dept Med, Toronto, ON, Canada
[30] Univ Saskatchewan, Royal Univ Hosp, Dept Med Imaging, Saskatoon, SK, Canada
[31] Univ Manitoba, Hlth Sci Ctr, Dept Internal Med, Div Neurol, Winnipeg, MB, Canada
[32] Western Univ, Schulich Sch Med & Dent, Dept Clin Neurol Sci, London, ON, Canada
[33] Univ British Columbia, Vancouver Gen Hosp, Dept Med, Div Neurol, Vancouver, BC V5Z 1M9, Canada
[34] Univ Toronto, Hosp Sick Children, Div Neuroradiol, Dept Diagnost & Intervent Radiol, Toronto, ON, Canada
[35] Univ Toronto, Hosp Sick Children, Dept Diagnost & Intervent Radiol, Div Neurointervent, Toronto, ON, Canada
[36] Univ Toronto, St Michaels Hosp, Unity Hlth Toronto, Div Neurosurg,Dept Surg, Toronto, ON, Canada
[37] McMaster Univ, Dept Global Hlth, Hamilton, ON, Canada
[38] McMaster Univ, Dept Surg, Hamilton, ON, Canada