1. School of Human Kinetics, University of Ottawa;
2. Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario;
3. Department of Neurosurgery, Centre de Santé et de Services Sociaux (CSSS) Gatineau (Hull site), Quebec, Canada;
4. Department of Orthopedics and Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, Minnesota;
5. Injury Prevention Research Office and Division of Neurosurgery, St. Michael's Hospital, and University of Toronto, Ontario, Canada; and
6. School of Mechanical and Materials Engineering, University College Dublin, Ireland