[1] Univ Hlth Network, Toronto Western Hosp, Emergency Dept, Toronto, ON, Canada
[2] Univ Hlth Network, Toronto Western Hosp, Pharm Dept, Toronto, ON, Canada
[3] Univ Hlth Network, Dept Pharm Serv, Toronto, ON, Canada
[4] Univ Toronto, Fac Pharm, Toronto, ON, Canada
[5] Inst Safe Medicat Practices Canada, Toronto, ON, Canada