1. Department of Clinical Neurological Sciences Schulich School of Medicine & Dentistry Western University London Ontario Canada
2. Unit for the Study and Treatment of Pain–ALGOS Department of Psychology Research Center for Behavior Assessment (CRAMC) Universitat Rovira i Virgili CataloniaSpain
3. Institut d'Investigació Sanitària Pere Virgili Universitat Rovira i Virgili Catalonia Spain
4. Department of Rehabilitation Medicine University of Washington Seattle Washington U.S.A
5. Pain Management Unit Nova Scotia Health Authority Halifax Nova Scotia Canada