1. Division of Physical Medicine and Rehabilitation, Department of Medicine, University of Toronto, Toronto, ON, Canada
2. Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
3. Institute of Bio-Materials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
4. Toronto Rehabilitation Institute, Toronto, ON, Canada
5. Royal North Shore Hospital, Sydney, NSW, Australia
6. Orthopaedic Rehabilitation Institute, Toronto, ON, Canada