1. Department of Anesthesiology Perioperative, and Pain Medicine Stanford University School of Medicine Stanford California USA
2. Department of Psychology University of Calgary Calgary Alberta Canada
3. Department of Oncology University of Calgary Calgary Alberta Canada
4. Alberta Children's Hospital Calgary Alberta Canada
5. Departments of Pediatric Psychology and Pediatric Pain and Palliative Medicine Helen DeVos Children's Hospital Grand Rapids Michigan USA
6. Department of Pediatrics and Human Development Michigan State University College of Human Medicine East Lansing Michigan USA