1. Unit for the Study and Treatment of Pain – ALGOS, Catalonia, Spain;
2. Department of Psychology, Research Center for Behavior Assessment (CRAMC), Catalonia, Spain;
3. Institut d’Investigació Sanitària Pere Virgili; Universitat Rovira i Virgili, Catalonia, Spain;
4. Department of Clinical and Neurological Sciences, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada;
5. Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA;
6. Department of Occupational Science and Technology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA