1. Departments of Clinical Health Psychology and Psychiatry, University of Manitoba, Winnipeg, Canada
2. Departments of Psychology and Anesthesiology, Perioperative and Pain Medicine, University of Manitoba, Winnipeg, Canada
3. Department of Psychiatry, University of Manitoba, Winnipeg, Canada
4. Departments of Anesthesiology, Perioperative and Pain Medicine, and Clinical Health Psychology, University of Manitoba, Winnipeg, Canada
5. Research Directorate, Veterans Affairs Canada, Charlottetown, Prince Edward Island, Canada
6. Canadian Forces Health Services Group, Department of National Defence, Ottawa, Ontario, Canada
7. Departments of Community Health Sciences and Psychiatry, University of Manitoba, Winnipeg, Canada