1. Institute for Social and Preventive Medicine, University of Bern, Bern, Switzerland
2. Department of Rheumatology, Immunology, and Allergology, Bern University Hospital, Bern, Switzerland
3. Arthritis Research UK Centre for Epidemiology, Centre for Musculoskeletal Research, Faculty of Biology, Medicine, and Health, University of Manchester, Manchester, England
4. NIHR Manchester Musculoskeletal Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, England
5. Clinical Epidemiology Unit, Boston University, Boston, Massachusetts
6. Applied Health Research Centre, Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, Ontario, Canada
7. Department of Chiropractic Medicine, Faculty of Medicine, University of Zurich and Balgrist University Hospital, Zurich, Switzerland
8. Clinical Trials Unit, University of Bern, Bern, Switzerland
9. Department of Medicine and Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
10. Department for Diagnostic, Interventional, and Pediatric Radiology, Bern University Hospital, Bern, Switzerland
11. Centre for Health Sciences Research, School of Health Sciences, University of Salford Manchester, Manchester, England