1. Department of Orthopaedics, University of British Columbia, Vancouver, British Columbia, Canada.
2. Rick Hansen Institute, Vancouver, British Columbia, Canada.
3. Operations and Logistics Division, Sauder School of Business, University of British Columbia, Vancouver, British Columbia, Canada.
4. Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada.
5. University of Toronto Spine Program, Toronto, Ontario, Canada.
6. Research Division of Neurosurgery, Dalhousie University, Halifax, Nova Scotia, Canada.