1. Department of Emergency Medicine UC Davis School of Medicine Sacramento California USA
2. Department of Pediatrics University of Utah School of Medicine Salt Lake City Utah USA
3. Department of Pediatrics, Division of Pediatric Emergency Medicine Ohio State University School of Medicine, Nationwide Children's Hospital Columbus OH USA
4. Department of Pediatrics, Division of Pediatric Emergency Medicine University of Utah School of Medicine, Primary Children's Hospital Salt Lake City Utah USA
5. Department of Pediatrics, Division of Pediatric Emergency Medicine Perelman School of Medicine at the University of Pennsylvania, Children's Hospital of Philadelphia Philadelphia PA USA
6. Department of Pathology and Laboratory Medicine University of California, Davis Sacramento California USA
7. Department of Psychology University of California, Davis Davis California USA
8. Department of Radiology UC Davis School of Medicine Sacramento California USA
9. Department of Pediatric Neurosciences Barrow Neurological Institute at Phoenix Children's Hospital Phoenix Arizona USA
10. Clinical Trials Unit London School of Hygiene and Tropical Medicine London UK
11. Department of Orthopedics and Rehabilitation University of Wisconsin Madison Wisconsin USA
12. Departments of Emergency Medicine and Pediatrics UC Davis School of Medicine Sacramento California USA