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