1. Department of Exercise and Sport Science, University of North Carolina at Chapel Hill
2. Injury Prevention Research Center, University of North Carolina at Chapel Hill
3. University Health Services, Princeton University, NJ
4. Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ
5. Departments of Orthopaedic Surgery and Family & Community Medicine, University of California, San Francisco
6. Department of Kinesiology, University of Connecticut, Storrs
7. Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz, Aurora
8. Palo Alto Medical Foundation Research Institute, CA
9. Datalys Center for Sports Injury Research and Prevention, Inc, Indianapolis, IN
10. Department of Athletic Training, Lebanon Valley College, Annville, PA
11. Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
12. Department of Epidemiology, University of North Carolina at Chapel Hill