1. Department of Neuropsychology, Kennedy Krieger Institute, and Department of Psychiatry, Johns Hopkins University School of Medicine, Johns Hopkins University, Baltimore, Maryland
2. Department of Emergency Medicine, Johns Hopkins University School of Medicine, Johns Hopkins University, Baltimore, Maryland
3. Center for Injury Research and Policy, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
4. Departments of Rehabilitation Medicine and Pediatrics, Children's Hospital and Regional Medical Center, University of Washington School of Medicine, Seattle, Washington
5. Department of Pediatrics, University of Arkansas for Medical Sciences College of Medicine, Little Rock, Arkansas
6. Department of Pediatrics, University of Pennsylvania School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
7. Department of Physical Medicine and Rehabilitation, Kennedy Krieger Institute, and Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Johns Hopkins University, Baltimore, Maryland
8. Division of Rehabilitation Psychology, Children's Hospital and Regional Medical Center, University of Washington School of Medicine, Seattle, Washington
9. Department of Surgery, University of South Florida College of Medicine, Tampa, Florida