[1] Univ Toronto, Dept Med, Toronto, ON, Canada
[2] Univ Toronto, Div Clin Pharmacol & Toxicol, Toronto, ON, Canada
[3] Univ Toronto, Div Infect Dis, Toronto, ON, Canada
[4] Univ Hlth Network, Div Gen Internal Med & Geriatr, Toronto, ON, Canada
[5] Sinai Hlth, Div Infect Dis, Toronto, ON, Canada