1. Division of Unintentional Injury Prevention, National Center for Injury Prevention & Control, Centers for Disease Control & Prevention, Atlanta, Georgia
2. Santa Monica Orthopedic & Sports Medicine Research Foundation, Santa Monica, California
3. National Recreation and Park Association, Ashburn, Virginia
4. Office of Statistics and Programming, National Center for Injury Prevention & Control, Centers for Disease Control & Prevention, Atlanta, Georgia
5. Peachtree Orthopedics, Atlanta, Georgia
6. National Collegiate Athletic Association, Indianapolis, Indiana
7. Fédération Internationale de Football Association (FIFA), Medical Assessment and Research Center, Schulthess Clinic, Zurich, Switzerland