1. Departments of Clinical Health Psychology and Psychiatry, University of Manitoba, Winnipeg, Manitoba, Canada
2. Department of Psychiatry, University of Manitoba, Winnipeg, Manitoba, Canada
3. Departments of Community Health Sciences and Psychiatry, University of Manitoba, Winnipeg, Manitoba, Canada
4. Departments of Anesthesiology, Perioperative and Pain Medicine, and Clinical Health Psychology, University of Manitoba, Winnipeg, Manitoba, Canada
5. Departments of Psychology and Anesthesiology, Perioperative and Pain Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
6. Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
7. National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA
8. Departments of Psychiatry and of Family Medicine and Public Health, University of California San Diego, La Jolla, and VA San Diego Healthcare System, San Diego, CA, USA
9. Department of Psychology and Anxiety and Illness Behaviours Lab, University of Regina, Regina, Canada