1. Toronto Rehabilitation Institute, University Health Network, Toronto, Canada
2. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
3. Centre for Clinical Ethics, Unity Health, Toronto, Canada
4. Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, Australia
5. National Health and Medical Research Council Centre, University of Melbourne, Melbourne, Australia
6. Division of Physical Medicine and Rehabilitation, Department of Medicine, University of Toronto, Toronto, Canada