[1] Univ Ottawa, Dept Anesthesiol & Pain Med, Ottawa, ON, Canada
[2] Univ Toronto, Dept Anesthesiol, Toronto, ON, Canada
[3] Western Univ, Dept Anesthesiol & Perioperat Med, London, ON, Canada
[4] Univ British Columbia, Dept Anesthesiol, Vancouver, BC, Canada
[5] Queens Univ, Dept Anesthesiol & Perioperat Med, Kingston, ON, Canada
[6] Univ Saskatchewan, Dept Anesthesiol, Saskatoon, SK, Canada
[7] Univ Alberta, Dept Anesthesiol, Edmonton, AB, Canada
[8] Univ Sherbrooke, Dept Anesthesiol, Sherbrooke, PQ, Canada
[9] McGill Univ, Dept Anesthesiol, Montreal, PQ, Canada
[10] Univ Calgary, Dept Anesthesiol, Calgary, AB, Canada
[11] Dalhousie Univ, Dept Anesthesiol, Halifax, NS, Canada
[12] Northern Ontario Sch Med, Dept Anesthesiol, Sudbury, ON, Canada
[13] Mem Univ Newfoundland, Dept Anesthesiol, St John, NF, Canada
[14] McMaster Univ, Dept Anesthesiol, Hamilton, ON, Canada
[15] Univ Montreal, Dept Anesthesiol, Montreal, PQ, Canada
[16] Southlake Reg Hlth Ctr, Dept Anesthesiol, Newmarket, ON, Canada
[17] Univ Manitoba, Dept Anesthesiol, Winnipeg, MB, Canada
[18] Univ Laval, Dept Anesthesiol, Quebec City, PQ, Canada