1. Graduate Program in Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, London, Ontario, Canada,
2. Ontario Stroke Network, Toronto, Ontario, Canada,
3. Aging, Rehabilitation and Geriatric Care Program, Lawson Health Research Institute, London, Ontario, Canada,
4. Heart and Stroke Foundation of Canada, Toronto, Ontario, Canada,
5. Department of Physical Medicine and Rehabilitation, St Joseph's Health Care, London, Ontario, Canada,
6. Department of Physical Medicine and Rehabilitation, Schulich School of Medicine and Dentistry, London, Ontario, Canada,
7. Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, London, Ontario, Canada, and
8. Centre for Studies in Family Medicine, Western University, London Ontario, Canada