1. Heidi Schwellnus, PhD, is Postdoctoral Fellow, Bloorview Research Institute, Toronto, Ontario
2. Heather Carnahan, PhD, is Professor, Department of Occupational Science and Occupational Therapy, University of Toronto, Toronto, Ontario
3. Azadeh Kushki, PhD, is Junior Research Scientist, Bloorview Research Institute, Toronto, Ontario
4. Helene Polatajko, PhD, is Professor, Graduate Department of Rehabilitation Science, University of Toronto, Toronto, Ontario
5. Cheryl Missiuna, PhD, is Professor, School of Rehabilitation Science, and Director, CanChild, Centre for Childhood Disability Research, McMaster University, Hamilton, Ontario
6. Tom Chau, PhD, is Vice President, Research and Director, Bloorview Research Institute, and Professor, Institute of Biomaterials and Biomedical Engineering, University of Toronto, 150 Kilgour Road, Toronto, ON M4G 1R8 Canada; tchau@utoronto.ca