[1] Childrens Hosp Eastern Ontario, Pediat Palliat Care Outreach Team, Ottawa, ON K1H 8L2, Canada
[2] Univ Ottawa, Dept Pediat, Ottawa, ON K1N 6N5, Canada
[3] Univ Ottawa, Dept Anesthesiol, Ottawa, ON K1N 6N5, Canada
[4] Univ Ottawa, Div Hematol Oncol, Dept Pediat, Childrens Hosp Eastern Ontario, Ottawa, ON K1N 6N5, Canada