1. Stanford University School of Medicine, Stanford, California
2. University of Calgary, Calgary, Alberta, Canada
3. Division of Unintentional Injury Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, Georgia
4. Children's National Health System, George Washington University School of Medicine, Washington, DC
5. Goodman Campbell Brain and Spine, Indianapolis, Indiana
6. Cleveland Clinic, Cleveland, Ohio
7. Kennedy Krieger Institute, Johns Hopkins University , Baltimore, Maryland
8. Johns Hopkins University School of Medicine, Baltimore, Maryland
9. UCLA Steve Tisch BrainSPORT Program, University of California, Los Angeles, Mattel Children’s Hospital, Los Angeles
10. David Geffen School of Medicine at University of California, Los Angeles
11. University of Florida Health Science Center, Jacksonville
12. Kaiser Permanente, Center for Neuropsychological Services, Roseville, California
13. Emory University School of Medicine, Atlanta, Georgia
14. Icahn School of Medicine at Mount Sinai, New York, New York
15. Sports Concussion Center of New Jersey, Princeton
16. Rocky Mountain Hospital for Children, Denver, Colorado
17. Children's Learning Institute and Department of Pediatrics, University of Texas Health Science Center at Houston
18. Massachusetts General Hospital, Harvard University, Boston
19. Princeton University, University Health Service, Princeton, New Jersey
20. Loma Linda University Health, Loma Linda, California
21. Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
22. University of Washington School of Medicine, Seattle
23. St Louis Children’s Hospital, St Louis, Missouri
24. University of Utah, Salt Lake City
25. Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
26. Raymond and Ruth Perelman School of Medicine at the University of Pennsylvania, Philadelphia
27. University of North Carolina, Chapel Hill
28. John H. Stroger Jr. Hospital of Cook County, Chicago, Illinois
29. Vanderbilt University School of Medicine, Nashville, Tennessee
30. University of Pittsburgh Medical Center Sports Medicine Concussion Program, Pittsburgh, Pennsylvania
31. Nationwide Children’s Hospital Research Institute, Columbus, Ohio
32. Jameson Crane Sports Medicine Institute and School of Health and Rehabilitation Sciences, The Ohio State University Wexner Medical Center, Columbus
33. Children's Hospital Colorado, Aurora
34. Nicklaus Children’s Hospital, University of Miami Miller School of Medicine, Miami, Florida
35. St. Joseph’s Children’s Hospital, Department of Pediatric Neurosurgery, Tampa, Florida
36. University of California, San Diego
37. Vanguard Communications, Washington, DC
38. National Association of State EMS Officials, Washington, Iowa
39. ICF, Social Marketing Group, Rockville, Maryland
40. American Academy of Neurology, Minneapolis, Minnesota
41. University of Kansas Medical Center, Kansas City
42. University of Virginia School of Medicine, Charlottesville
43. Penn State University, Milton S. Hershey Medical Center, Hershey