1. Holland Bloorview Kids Rehabilitation Hospital, Bloorview Research Institute, Toronto, Canada
2. Department of Occupational Science and Occupational Therapy, University of Toronto, Toronto, Canada
3. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
4. Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
5. Department of Pediatrics, CanChild Centre for Childhood Disability Research, McMaster University, Hamilton, Canada
6. Kinesiology and Health Sciences, York University, Toronto, Canada
7. Department of Anthropology, The State University of New York, Albany, NY, USA