[1] Univ Calgary, Dept Med, Div Gen Internal Med, Calgary, AB, Canada
[2] Dalhousie Univ, Dept Crit Care, Halifax, NS, Canada
[3] Univ Sherbrooke, Dept Med, Internal Med & Crit Care Med Div, Sherbrooke, PQ, Canada
[4] Univ Toronto, Dept Med, Interdept Div Crit Care Med, Toronto, ON, Canada
[5] Dalhousie Univ, Dept Med, Div Cardiol, Halifax, NS, Canada
[6] Mayo Clin, Dept Cardiovasc Med, Rochester, MN USA
[7] Univ Alberta, Dept Crit Care Med, Edmonton, AB, Canada
[8] Queens Univ, Dept Med, Div Gen Internal Med, Kingston, ON, Canada
[9] Dalhousie Univ, Dept Crit Care, Div Gen Internal Med, Halifax, NS, Canada
[10] Univ Manitoba, Dept Crit Care Med, Winnipeg, MB, Canada
[11] Univ Alberta, Dept Crit Care Med, Edmonton, AB, Canada
[12] Univ Saskatchewan, Dept Med, Div Gen Internal Med, Saskatoon, SK, Canada
[13] Univ Laval, Gen Internal Med, Quebec City, PQ, Canada
[14] Univ Ottawa, Dept Med, Div Gen Internal Med, Ottawa, ON, Canada
[15] McMaster Univ, Dept Med, Div Gen Internal Med, Hamilton, ON, Canada
[16] Univ Sherbrooke, Dept Med, Internal Med & Crit Care Med Div, Sherbrooke, PQ, Canada
[17] Dalhousie Univ, Dept Med, Div Cardiol, Med, Halifax, NS, Canada
[18] Univ Alberta, Dept Med, Div Gen Internal Med, Edmonton, AB, Canada
[19] Western Univ, Dept Med, Div Gen Internal Med, London, ON, Canada