1. Interdepartmental Division of Critical Care Medicine
2. Department of Physiology, and
3. Division of Respirology, Department of Medicine, University Health Network and Mount Sinai Hospital, Toronto, Ontario, Canada
4. Department of Critical Care, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
5. Department of Medicine and
6. Department of Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
7. Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventative Medicine, Monash University, Melbourne, Victoria, Australia
8. The Hospital for Sick Children, Toronto, Ontario, Canada
9. Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota
10. Cardio-Pulmonary Department, Pulmonary Division, Heart Institute (Incor), University of São Paulo, São Paulo, Brazil; and
11. Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
12. Department of Medicine, Division of Respirology, University Health Network, Toronto, Ontario, Canada