1. Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
2. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
3. Department of Medicine, University Health Network and Sinai Health System, Toronto, Canada
4. Department of Medicine, University of Toronto, Toronto, Canada
5. Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University College of Physicians and Surgeons/New York—Presbyterian Hospital, New York
6. Keenan Research Center, Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, Canada