[1] Univ Calif Irvine, Childrens Hosp Orange Cty, Div Emergency Med, Irvine, CA 92697 USA
[2] Childrens Hosp Assoc, Lenexa, KS USA
[3] Ohio State Univ, Nationwide Childrens Hosp, Coll Med, Columbus, OH USA
[4] Univ Penn, Childrens Hosp Philadelphia, Dept Pediat, Philadelphia, PA USA
[5] Kentucky Hosp Assoc, Louisville, KY USA
[6] Univ Cincinnati, Cincinnati Childrens Hosp Med Ctr, Dept Pediat, Coll Med, Cincinnati, OH USA
[7] Univ Missouri Kansas City, Childrens Mercy Hosp, Kansas City, MO USA
[8] Mayo Clin, Mayo Clin Coll Med & Sci, Rochester, MN USA
[9] Yale Univ, Yale New Haven Childrens Hosp, Dept Pediat, Sch Med, New Haven, CT USA
[10] Univ Utah, Primary Childrens Hosp, Salt Lake City, UT USA
[11] Med Univ South Carolina Childrens Hlth, Charleston, SC USA
[12] Harvard Med Sch, Boston Childrens Hosp, Dept Anesthesiol Crit Care & Pain Med, Dept Anesthesia, Boston, MA USA
[13] Univ Washington, Seattle Childrens Hosp, Seattle, WA USA
[14] SUNY, Upstate Med Ctr, Syracuse, NY USA
[15] Univ Colorado, Childrens Hosp Colorado, Dept Pediat, Sch Med, Denver, CO USA
[16] Cohen Childrens Med Ctr New York, Queens, NY USA
[17] Childrens Hosp Colorado, Denver, CO USA
[18] Case Western Reserve Univ, Rainbow Babies & Childrens Hosp, Div Pediat Emergency Med, Cleveland Hts, OH USA
[19] Nationwide Childrens Hosp, Dept Pediat, Div Pediat Crit Care Med, Columbus, OH USA