1. Department of Anesthesia and Pain Medicine, Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
2. Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
3. Department of Psychology, Hospital for Sick Children, Toronto, Ontario, Canada
4. Department of Psychology, York University, Toronto, Ontario, Canada
5. Department of Rehabilitation Services, Hospital for Sick Children, Toronto, Ontario, Canada
6. Department of Physical Therapy, University of Toronto, Toronto, Ontario, Canada
7. Child Health Evaluative Sciences, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada