1. Department of Surgery, Division of Orthopaedics, Memorial University of Newfoundland, NL
2. Division of Orthopedics, Dalhousie University, Halifax, NS
3. Lawson Health Research Institute
4. London Health Sciences Centre Combined Neurosurgical and Orthopaedic Spine Program, Schulich School of Medicine, Western University, London
5. The Schroeder Arthritis Institute, Krembil Research Institute, University Health Network
6. Department of Orthopaedic Surgery, Toronto Western Hospital, Schroeder Arthritis Institute, University Health Network (UHN), Toronto, ON
7. Combined Neurosurgical & Orthopaedic Spine Program, Vancouver General Hospital and the University of British Columbia, Vancouver, BC, Canada