1 Department of Anesthesiology, Pharmacology & Therapeutics, The University of British Columbia, Vancouver, BC, Canada. alana.flexman@ubc.ca.
2 Department of Anesthesia, St. Paul's Hospital, Providence Health Care, Vancouver, BC, V6Z 1Y6, Canada. alana.flexman@ubc.ca.
3 Centre for Advancing Health Outcomes, St. Paul's Hospital, Vancouver, BC, Canada. alana.flexman@ubc.ca.
4 Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA, USA.
5 Department of Anesthesia and Pain Management, University Health Network - Toronto Western Hospital, Toronto, ON, Canada.
6 Department of Anesthesiology & Pain Medicine, University of Toronto, Toronto, ON, Canada.
7 The Wilson Centre, Toronto, ON, Canada.
8 Women's College Research Institute, Toronto, ON, Canada.