1. Research group on Methodology, Methods, Models and Outcomes of Health and Social Sciences (M3O), Faculty of Health Sciences and Welfare, Centre for Health and Social Care Research (CESS), University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain
2. Institute for Research and Innovation in Life Sciences and Health in Central Catalonia (IRIS-CC), Vic, Spain
3. Pain Medicine Section, Anaesthesiology Dept, Hospital Clinic de Barcelona, Barcelona, Spain
4. Surgery Department, Medicine Faculty, Universitat de Barcelona (UB), Barcelona, Spain
5. Department of Clinical Psychology and Psychobiology, Section of Clinical Health Psychology, Clinical Institute of Neurosciences, Hospital Clinic, University of Barcelona, Barcelona, Spain