[1] Univ Ottawa, Dept Emergency Med, Ottawa, ON, Canada
[2] Ottawa Hosp, Ottawa Hosp Res Inst, Ottawa, ON, Canada
[3] Univ Ottawa, Sch Epidemiol & Publ Hlth, Ottawa, ON, Canada
[4] Columbia Univ, Irving Med Ctr, Emergency Med, New York, NY USA
[5] Columbia Univ, Irving Med Ctr, Dept Med, Seymour Paul & Gloria Milstein Div Cardiol, New York, NY USA
[6] Univ Calgary, Libin Cardiovasc Inst, Dept Cardiac Sci, Calgary, AB, Canada
[7] McGill Univ, Dept Emergency Med, Montreal, PQ, Canada
[8] McGill Univ, Hlth Ctr, Montreal, PQ, Canada
[9] Lady Davis Res Inst, Montreal, PQ, Canada
[10] Jewish Gen Hosp, Montreal, PQ, Canada
[11] Univ Ottawa, Sch Engn Design & Teaching Innovat, Ottawa, ON, Canada