1. Klimmendaal, Rehabilitation Center, Arnhem, The Netherlands
2. Department of Rehabilitation, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
3. Department of Clinical and Health Psychology and Research Methodology; Psychology Faculty, University of the Basque Country (UPV/EHU), Donostia-San Sebastián, Gipuzkoa, Spain
4. ÉCOBES, research and transfer, Cégep de Jonquière, Jonquière, Canada
5. Patient association Spierziekten Nederland, Baarn, The Netherlands
6. Medicine & Health Sciences Faculty, Université de Sherbrooke, Quebec, Canada; CR-CHUS and CIUSSS Saguenay–Lac-St-Jean research centres, Québec, Canada
7. Department of Psychological Sciences and Health, University of Strathclyde, Scotland