1. International Collaboration on Repair Discoveries, University of British Columbia (UBC), Vancouver, British Columbia, Canada.
2. Department of Neurosurgery, Kyungpook National University Hospital, Daegu, Korea.
3. Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, Korea.
4. Vancouver Spine Surgery Institute, Department of Orthopaedics, and University of British Columbia (UBC), Vancouver, British Columbia, Canada.
5. School of Biomedical Engineering and Orthopedics, University of British Columbia (UBC), Vancouver, British Columbia, Canada.
6. Division of Critical Care Medicine, Department of Medicine and Pharmacology and Therapeutics, Faculty of Medicine, Vancouver General Hospital, Vancouver, British Columbia, Canada.
7. Division of Critical Care Medicine, Department of Anesthesiology, Pharmacology and Therapeutics, Faculty of Medicine, Vancouver General Hospital, Vancouver, British Columbia, Canada.