[1] Vancouver Gen Hosp, Dept Med, Div Cardiol, Vancouver, BC, Canada
[2] Univ British Columbia, Ctr Cardiovasc Innovat, Vancouver, BC, Canada
[3] Univ Calgary, Hotchkiss Brain Inst, Dept Clin Neurosci, Calgary, AB, Canada
[4] Univ Calgary, Dept Crit Care, Calgary, AB, Canada
[5] McMaster Univ, Dept Med, Div Cardiol, Hamilton, ON, Canada
[6] Univ British Columbia, Dept Emergency Med, Vancouver, BC, Canada
[7] Univ Saskatchewan, Div Neurol, Saskatoon, SK, Canada
[8] KingsCollege Hosp NHS Fdn Trust, Dept Crit Care, London, England
[9] Univ Toronto, Interdept Div Crit Care Med, Toronto, ON, Canada
[10] Univ British Columbia, Div Crit Care, Vancouver Gen Hosp,Dept Med, Djavad Mowafaghian Ctr Brain Hlth Int,Ctr Repair, Vancouver, BC, Canada
[11] Univ Alberta, Dept Crit Care Med, Edmonton, AB, Canada
[12] Univ Alberta, Dept Med, Div Cardiol, Edmonton, AB, Canada
[13] Univ Ottawa, Dept Med, Div Cardiol, Inst Heart, Ottawa, ON, Canada
[14] Univ Toronto, Dept Med, Div Cardiol, Toronto, ON, Canada
[15] CHU Quebec, Dept Neurol Sci, Hop Enfant Jesus Quebec City, Quebec City, PQ, Canada
[16] Univ Calgary, Dept Med, Div Cardiol, Calgary, AB, Canada
[17] Univ Ottawa, Ottawa Hosp, Div Neurol, Ottawa, ON, Canada
[18] Duke Clin Res Inst, Durham, NC USA
[19] Univ Toronto, Dept Med, Div Cardiol, Toronto, ON, Canada
[20] Univ Hlth Network, Peter Munk Cardiac Ctr, Ted Rogers Ctr Heart Res, Toronto, ON, Canada
[21] Univ Ottawa, Inst Heart, CAPITAL Res Grp, Div Cardiol, Ottawa, ON, Canada
[22] Univ Ottawa, Fac Med, Div Crit Care, Ottawa, ON, Canada
[23] Univ Toronto, Interdept Div Crit Care Med, Toronto Western Hosp, Krembil Res Inst,Univ Hlth Network, Toronto, ON, Canada
[24] Sunnybrook Hlth Sci Ctr, Dept Crit Care Med, Toronto, ON, Canada
[25] Dalhousie Univ, Dept Emergency Med, Halifax, NS, Canada
[26] Dalhousie Univ, Dept Crit Care, Halifax, NS, Canada
[27] McGill Univ, Montreal Neurol Inst & Hosp, Neurol Intens Care Unit, Montreal, PQ, Canada