1. Department of Anesthesia, St Joseph’s Healthcare, McMaster University, Hamilton, ON, Canada
2. Department of Anesthesia, McMaster University, Hamilton, ON, Canada
3. Department of Surgery, St Joseph’s Healthcare, McMaster University, Hamilton, ON, Canada
4. Departments of Health Research Methods, Evidence, and Impact and Medicine, McMaster University, Hamilton, ON, Canada
5. Department of Surgery, McMaster University, Hamilton, ON, Canada
6. Biostatistics Unit, St Joseph’s Healthcare Hamilton, Hamilton, ON, Canada
7. Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa