1. Faculty of Medicine, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada
2. The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
3. Centre for Collaborative Health, Oakville, Ontario, Canada
4. Department of Anesthesiology and Pain Medicine, University of Ottawa, Ottawa, Ontario, Canada
5. Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
6. Department of Anesthesiology, Hamilton Health Sciences Centre, Hamilton, Ontario, Canada
7. Department of Psychology, McGill University, Montreal, Quebec, Canada
8. Department of Psychology, The Ottawa Hospital, Ottawa, Ontario, Canada