Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada

Division of General Internal Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada

Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Canada

Department of Anesthesia and Pain Management, University Health Network – Toronto Western Hospital, Toronto, ON, Canada

Wilson Centre for Research in Education, Toronto, ON, Canada

Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada

Department of Pediatrics, University of British Columbia, Vancouver, Canada

Centre for Addiction and Mental Health (CAMH), Toronto, Canada

Departments of Psychiatry and Community and Family Medicine, University of Toronto, Toronto, Canada

Wilson Centre for Research in Education, University Health Network/University of Toronto, Toronto, Canada

Division of General Internal Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada

Department of Medicine, University of Toronto, Toronto, Canada

Kinnon R. MacKinnon, School of Social Work, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada. Email: [email protected]