1. Center for Translational Research, Division of Psychology & Behavioral Health, Children's National Hospital, Washington, DC, USA
2. George Washington University School of Medicine and Health Sciences, Washington, DC, USA
3. Department of Psychology, University of Guelph, Guelph, ON, Canada
4. Pediatric Chronic Pain Program, McMaster Children's Hospital, Hamilton, ON, Canada
5. Department of Paediatrics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada