[1] Univ Calif San Francisco, Dept Emergency Med, San Francisco, CA USA
[2] Childrens Hosp Assoc, Lenexa, KS USA
[3] Northwestern Univ, Ann & Robert H Lurie Childrens Hosp Chicago, Dept Pediat, Div Emergency Med,Feinberg Sch Med, Chicago, IL USA
[4] Univ Southern Calif, Keck Sch Med, Childrens Hosp Los Angeles, Dept Pediat,Div Emergency & Transport Med, Los Angeles, CA USA
[5] Univ Calgary, Cumming Sch Med, Dept Pediat, Div Pediat Emergency Med, Calgary, AB, Canada
[6] Johns Hopkins Univ, Ctr Data Sci Emergency Med, Dept Pediat, Div Pediat Emergency Med,Sch Med, Baltimore, MD USA
[7] Childrens Hosp Minnesota, Dept Pediat Emergency Med, Minneapolis, MN USA
[8] Ann & Robert H Lurie Childrens Hosp Chicago, Div Acad Pediat & Primary Care, Chicago, IL USA
[9] Boston Childrens Hosp, Div Emergency Med, Boston, MA USA