1. Department of Surgery, University of Toronto, Toronto, Ontario, Canada2Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada3Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
2. Department of Surgery, University of Toronto, Toronto, Ontario, Canada2Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada4Sunnybrook Health Sciences Centre, Department of Surgery, Toronto, Ontario, Canada
3. Department of Surgery, University of Toronto, Toronto, Ontario, Canada4Sunnybrook Health Sciences Centre, Department of Surgery, Toronto, Ontario, Canada
4. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
5. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada3Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
6. Department of Surgery, University of Toronto, Toronto, Ontario, Canada2Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada3Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada4Sunnybrook Health Sciences Centre, Department of Surgery, Toronto, Ontario, Canada
7. Department of Surgery, University of Toronto, Toronto, Ontario, Canada3Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada4Sunnybrook Health Sciences Centre, Department of Surgery, Toronto, Ontario, Canada
8. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada3Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada5Toronto Rehabilitation Institute-University Health Network, Toronto, Ontario, Canada