[1] Univ Florida, Coll Med, Dept Emergency Med, Gainesville, FL USA
[2] Univ Florida, Coll Med, Dept Pediat, Gainesville, FL USA
[3] Univ Arizona, Coll Med, Dept Child Hlth, Phoenix, AZ USA
[4] Med Coll Wisconsin, Dept Pediat, Sect Pediat Emergency Med, Milwaukee, WI USA
[5] Brown Univ, Alpert Med Sch, Dept Emergency Med, Providence, RI USA
[6] Brown Univ, Alpert Med Sch, Dept Pediat, Providence, RI USA
[7] Washington Univ, Sch Med St Louis, Dept Pediat, St Louis, MO USA
[8] Boston Univ, Sch Med, Dept Pediat, Div Pediat Emergency Med, Boston, MA USA
[9] Norton Childrens, Dept Pediat Emergency Med, Louisville, KY USA
[10] Univ Louisville, Sch Med, Louisville, KY USA
[11] Univ Minnesota, Dept Pediat, Div Pediat Emergency Med, Minneapolis, MN USA
[12] Ohio State Univ, Coll Med, Nationwide Childrens Hosp, Dept Pediat, Columbus, OH USA
[13] Kings Cty Hosp Ctr, SUNY Downstate Med Ctr, Dept Emergency Med, Div Pediat, Brooklyn, NY USA
[14] Columbia Univ, Irving Med Ctr, Dept Emergency Med, New York, NY USA