[1] McMaster Univ, Dept Med, Div Emergency Med, Hamilton, ON, Canada
[2] Trillium Gift Life Network, Toronto, ON, Canada
[3] Ottawa Hosp, Dept Crit Care, Ottawa, ON, Canada
[4] Univ Ottawa, Dept Med, Div Palliat Care, Ottawa, ON, Canada
[5] Univ British Columbia, Div Crit Care Med, Vancouver, BC, Canada
[6] BC Transplant, Donat Serv, Vancouver, BC, Canada
[7] Canadian Blood Serv, Donat & Transplantat, Ottawa, ON, Canada
[8] Univ Toronto, Interdept Div Crit Care Med, Dept Med, Toronto, ON, Canada
[9] Scarborough Hlth Network, Dept Crit Care, Scarborough, ON, Canada
[10] Scarborough Hlth Network, Dept Med, Scarborough, ON, Canada
[11] Univ Toronto, Dept Med, Div Palliat Care, Toronto, ON, Canada
[12] Montreal Childrens Hosp, Div Crit Care, Montreal, PQ, Canada
[13] McGill Univ, Hlth Ctr & Res Inst, Montreal, PQ, Canada