1. Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
2. Sunnybrook Research Institute, Toronto, Ontario, Canada
3. Interdepartmental Division of Critical Care and
4. Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
5. Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Canada
6. Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
7. West Park Healthcare Centre, Toronto, Ontario, Canada; and
8. Provincial Centre of Weaning Excellence, Toronto East General Hospital, Toronto, Ontario, Canada