[1] Univ Toronto, Hosp Sick Children, Div Clin Pharmacol, Toronto, ON, Canada
[2] Univ Toronto, Hosp Sick Children, Div Infect Dis, Toronto, ON, Canada
[3] Univ Toronto, Hosp Sick Children, Div Toxicol, Toronto, ON, Canada
[4] Univ Toronto, Hosp Sick Children, Dept Med, Toronto, ON, Canada
[5] Sunnybrook & Womens Coll, Hlth Sci Ctr, Toronto, ON, Canada