1. Department of Health Research Methods, Evidence, and Impact , McMaster University, Hamilton, Ontario L8S 4L8, Canada
2. Michael G. DeGroote National Pain Centre, McMaster University, MDCL-2101 , Hamilton, Ontario L8S 4L8, Canada
3. Temerty Faculty of Medicine, University of Torontor , Toronto, Ontario M5S 1A8, Canada
4. Faculty of Social Sciences, University of Ottawa , Ottawa, Ontario K1N 6N5, Canada
5. Department of Anesthesia, Faculty of Health Sciences, McMaster University , Hamilton, Ontario L8S 4L8, Canada