[1] Univ British Columbia, Pediat Res Emergency Therapeut PRETx Program, Div Pediat Emergency Med, Vancouver, BC, Canada
[2] Univ British Columbia, Dept Pediat, Div Endocrinol, Vancouver, BC, Canada
[3] Univ British Columbia, Dept Psychiat, Vancouver, BC, Canada
[4] BC Childrens Hosp Res Inst, Vancouver, BC, Canada