1. School of Health & Life Sciences, Institute of Applied Health Research; Glasgow Caledonian University; Glasgow UK
2. Department of Movement and Sports Sciences; Ghent University; Gent Belgium
3. School of Health & Wellbeing; University of Southern Queensland; Ipswich Australia
4. Centre for Health Services Research; The University of Queensland; Brisbane Australia
5. Aberdeen City Health & Social Care Partnership; Aberdeen UK
6. Department of Social Sciences and Community Health; 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; Vic Spain
7. Kaiser Permanente Washington Health Research Institute; Seattle WA USA
8. Centre for Hip Health and Mobility; Department of Family Practice, The University of British Columbia; Vancouver Canada
9. Department of Neuroscience, Faculty of Medicine; Norwegian University of Science and Technology; Trondheim Norway