[1] St Justine Hosp, Div Gen Pediat, Dept Pediat, Montreal, PQ H3T 1C5, Canada
[2] St Justine Hosp, Dept Pediat, Pediat Palliat Care Unit, Montreal, PQ H3T 1C5, Canada
[3] St Justine Hosp, Dept Pediat, Div Pediat Anesthesiol, Montreal, PQ H3T 1C5, Canada
[4] St Justine Hosp, Dept Pediat, Appl Clin Res Unit, Montreal, PQ H3T 1C5, Canada