1. Ashford and St. Peter's Hospitals NHS Foundation Trust, Chertsey, Surrey, United Kingdom
2. Department of Orthopaedic Surgery, Mansoura International Hospital, Mansoura, Egypt
3. Faculty of Health, University of Waterloo, Waterloo, Ontario, Canada
4. Faculty of Science, McGill University, Montreal, Quebec, Canada
5. Division of Physical Medicine and Rehabilitation, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
6. Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada