[1] Hosp Sick Children SickKids, Dept Anesthesia & Pain Med, Toronto, ON, Canada
[2] SickKids Res Inst, Child Hlth Evaluat Sci, Toronto, ON, Canada
[3] St Marys Hosp, Dept Anesthesiol, Fukuoka, Japan
[4] Kyushu Univ, Grad Sch Med Sci, Dept Anesthesiol & Crit Care Med, Fukuoka, Japan
[5] Univ Hlth Network, Lib & Informat Serv, Toronto, ON, Canada
[6] Queens Univ, Sch Med, Kingston, ON, Canada
[7] SickKids Res Inst, Mol Med, Toronto, ON, Canada
[8] Hosp Sick Children SickKids, Dept Otolaryngol Head & Neck Surg, Toronto, ON, Canada
[9] Toronto Gen Hosp, Dept Anesthesiol & Pain Management, Toronto, ON, Canada