[1] Univ Southern Calif, Keck Sch Med, Childrens Hosp Los Angeles, Dept Pediat,Div Emergency & Transport Med, Los Angeles, CA USA
[2] Childrens Hosp Los Angeles, Dept Pediat, Div Emergency & Transport Med, 113,4650 Sunset Blvd, Los Angeles, CA 90027 USA
[3] Childrens Hosp Los Angeles, Dept Anesthesiol Crit Care Med, 113,4650 Sunset Blvd, Los Angeles, CA 90027 USA
[4] Univ Southern Calif, Keck Sch Med, Dept Anesthesiol, Los Angeles, CA USA
[5] Univ Southern Calif, Keck Sch Med, Dept Pediat, Los Angeles, CA USA