[1] Childrens Hosp Orange Cty, Emergency Med Specialists Orange Cty, Orange, CA USA
[2] Univ Calif Irvine, Sch Med, Dept Pediat, Irvine, CA USA
[3] Nationwide Childrens Hosp, Columbus, OH USA
[4] UMass Mem Childrens Med Ctr, Child Hlth Equ Ctr, UMass Chan Med Sch, Dept Pediat, Worcester, MA USA
[5] Childrens Hosp Orange Cty, UC Irvine Sch Med, Dept Pediat, Pediat Emergency Med,Emergency Med Specialists Ora, 1310 Stewart Dr,Ste 212, Orange, CA 92868 USA