1. Evaluative Clinical Sciences, Sunnybrook Research Institute, Toronto, Canada
2. Division of General Surgery, Department of Surgery, University of Toronto, Toronto, Canada
3. Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Canada
4. Institute for Clinical Evaluative Sciences, Toronto, Canada
5. Manitoba Centre for Health Policy, Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
6. Department of Radiation Oncology, University of Toronto, Toronto, Canada
7. Department of Medical Oncology, University of Toronto, Toronto, Canada
8. Section of Thoracic Surgery, Department of Surgery, University of Manitoba, Winnipeg, Canada
9. Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto, Canada