1. University of British Columbia, ICORD, Vancouver, British Columbia, Canada.
2. University of Manitoba, Department of Physiology, Winnipeg, Manitoba, Canada.
3. Cornell Medical School, Burke Research Institute, White Plains, New York.
4. Ottawa Health Research Institute, Department of Neuroscience, Ottawa, Ontario, Canada.
5. Toronto Western Hospital, Spinal Program, Krembil Neuroscience Centre, Toronto, Ontario, Canada.
6. Queen's University, Department of Anatomy and Cell Biology, Kingston, Ontario, Canada.
7. University of Toronto, Department of Surgery, Toronto, Ontario, Canada.
8. University of British Columbia, Department of Orthopaedics, Vancouver, British Columbia, Canada.