1. Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
2. School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
3. Faculty of Health Sciences, University of Ontario Institute of Technology, Oshawa, Ontario, Canada
4. Department of Respiratory Therapy, Hospital for Sick Children, Toronto, Ontario, Canada
5. Department of Medicine, University of Ottawa, and Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
6. Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; and
7. Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada