1. Department of Emergency Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico;
2. Section of Emergency Medicine, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, Texas;
3. Division of Emergency Medical Services, Department of Pediatrics and Emergency Department, University of Pittsburgh Medical Center Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania;
4. Department of Emergency Medicine, Children’s HospitalNew Orleans and Louisiana State University Health New Orleans, New Orleans, Louisiana;
5. Departments of Pediatrics and Emergency Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, District of Columbia;
6. Division of Emergency Medicine, Children’s National Medical Center, Washington, District of Columbia;
7. Departments of Emergency Medicine and Pediatrics, David Geffen School of Medicine, University of California, Los Angeles and Harbor–University of California, Los Angeles Medical Center, Los Angeles, California;
8. San Marcos Hays County Emergency Medical Services, San Marcos, Texas;
9. Austin-Travis County Emergency Medical Services System, Austin, Texas;
10. Department of Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, Texas;
11. Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado;
12. Level I Adult Trauma Center and Level II Pediatric Trauma Center, North Memorial Health Hospital, Minneapolis, Minnesota;
13. Department of Pediatric Emergency Medicine and Urgent Care Center, Denver Health Medical Center, Denver, Colorado;
14. Pediatric Emergency and Trauma Nursing, Fort Worth, Texas;
15. Emergency Medical Services for Children, Maryland Institute for Emergency Medical Services Systems, Baltimore, Maryland; and
16. Division of Emergency Medicine, Department of Pediatrics, Nationwide Children’s Hospital and College of Medicine, The Ohio State University, Columbus, Ohio