1 University of Calgary, Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, Foothills Medical Center, Calgary, AB, Canada. Electronic address: lorraine.chow@ahs.ca.
2 University of Calgary, Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, Foothills Medical Center, Calgary, AB, Canada.
3 University of Calgary, Department of Medicine, Foothills Medical Center, Calgary, AB, Canada.