1. Department of Rehabilitation, Holland Orthopedic & Arthritic Centre, Sunnybrook Health Sciences Centre, Toronto, Canada
2. Department of Physical therapy, Faculty of Medicine, University of Toronto, Toronto, Canada
3. Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada
4. Department of Medical Imaging, Sunnybrook Health Sciences Centre, Toronto, Canada
5. Department of Medical Imaging, Faculty of Medicine, University of Toronto, Toronto, Canada
6. School of Rehabilitation Science, McMaster University, Hamilton, Canada