[1] Univ Pittsburgh, Dept Pediat, Div Emergency Med Serv, Med Ctr,Childrens Hosp Pittsburgh, Pittsburgh, PA 15260 USA
[2] Univ Pittsburgh, Childrens Hosp Pittsburgh, Emergency Dept, Med Ctr, Pittsburgh, PA 15213 USA
[3] Univ New Mexico, Dept Emergency Med, Hlth Sci Ctr, Albuquerque, NM 87131 USA
[4] Baylor Coll Med, Dept Pediat, Sect Emergency Med, Houston, TX 77030 USA
[5] Texas Childrens Hosp, Houston, TX 77030 USA
[6] Childrens Hosp New Orleans, Dept Emergency Med, New Orleans, LA USA
[7] Louisiana State Univ Hlth New Orleans, New Orleans, LA USA
[8] George Washington Univ, Sch Med & Hlth Sci, Dept Pediat, Washington, DC 20052 USA
[9] George Washington Univ, Sch Med & Hlth Sci, Dept Emergency Med, Washington, DC 20052 USA
[10] Childrens Natl Med Ctr, Div Emergency Med, Washington, DC 20010 USA
[11] Univ Calif Los Angeles, David Geffen Sch Med, Dept Emergency Med, Los Angeles, CA 90095 USA
[12] Univ Calif Los Angeles, David Geffen Sch Med, Dept Pediat, Los Angeles, CA 90095 USA
[13] Harbor Univ Calif, Los Angeles Med Ctr, Los Angeles, CA USA
[14] San Marcos Hays Cty Emergency Med Serv, San Marcos, TX USA
[15] Austin Travis Cty Emergency Med Serv Syst, Austin, TX USA
[16] Univ Texas Austin, Dell Med Sch, Dept Pediat, Austin, TX 78712 USA
[17] Univ Colorado, Sch Med, Dept Pediat, Aurora, CO USA
[18] Denver Hlth Med Ctr, Dept Pediat Emergency Med, Denver, CO USA
[19] Denver Hlth Med Ctr, Urgent Care Ctr, Denver, CO USA
[20] Maryland Inst Emergency Med Serv Syst, Emergency Med Serv Children, Baltimore, MD 21201 USA
[21] Nationwide Childrens Hosp, Dept Pediat, Div Emergency Med, Columbus, OH USA
[22] Ohio State Univ, Coll Med, Columbus, OH 43210 USA
[23] North Mem Hlth Hosp, Level Adult Trauma Ctr 1, Minneapolis, MN USA
[24] North Mem Hlth Hosp, Level Pediat Trauma Ctr 2, Minneapolis, MN USA
[25] Univ Louisville, Div Pediat Surg, Louisville, KY 40292 USA
[26] Norton Childrens Hosp, Louisville, KY USA
[27] Amer Acad Family Phys, Leawood, KS USA
[28] Natl Assoc State EMS Officials, Falls Church, VA USA
[29] Amer Acad Pediat Family Partnerships Network, Falls Church, VA USA
[30] Emergency Med Serv Children Innovat & Improvement, Houston, TX USA
[31] Natl Assoc EMS Phys, Overland Pk, KS USA
[32] Maternal & Child Hlth Bur, Rockville, MD USA
[33] Natl Assoc Emergency Med Tech, Clinton, MS USA
[34] Amer Coll Emergency Phys, Irving, TX USA
[35] Emergency Nurses Assoc, Des Plaines, IL USA
[36] Amer Coll Surg, Washington, DC USA