1. Department of Musculoskeletal Radiology, University of Oxford, Oxford, United Kingdom
2. Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals, Leeds, United Kingdom
3. Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
4. Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
5. Department of Musculoskeletal Radiology, University of Loughborough, Leicester Royal Infirmary, Leicester, United Kingdom
6. Department of Radiology, University Hospital, Uppsala, Sweden
7. Department of Radiology B, Hôpital Cochin, APHP, Paris, France
8. Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
9. Department of Radiology B, Cochin Hospital, Paris, France
10. Department of Radiology, University of Foggia, Foggia, Italy
11. Department of Musculoskeletal Radiology, Guys and St Thomas' Hospitals Foundation Trust, Kings College London and GKT, London, United Kingdom
12. Department of Radiology, Ghent University Hospital, Ghent, Belgium
13. Department of Radiology, Aarhus University Hospital, Aarhus, Denmark
14. Department of Radiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
15. Department of Radiology, Università degli Studi di Genova, Genova, Italy
16. Unidade de Imagem Musculoesquelética (UIME), Hospital da Luz, Lisbon, Portugal
17. Department of Diagnostic and Interventional Radiology, Institute of Radiology, Nuclear Medicine and Radiotherapy, Bottrop, Denmark
18. The NIHR Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospital NHS Trust, Leeds, United Kingdom
19. Department of Radiology and Nuclear Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
20. Department of Rheumatology, Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Copenhagen University Hospital Rigshospitalet, Glostrup, Denmark
21. Department of Radiology, Hôpitaux Iris Sud, Brussels, Belgium
22. Department of Musculoskeletal Radiology, Leiden University Medical Center, Leiden, The Netherlands
23. Department of Radiology, University Medical Center Maribor, Maribor, Slovenia
24. Department of Radiology, Université Libre de Bruxelles (ULB), “Reine Fabiola” Children's University Hospital, Brussels, Belgium
25. Functional Unit for Diagnostic and Interventional Musculoskeletal Radiology, Function Imaging and Physiology, Karolinska University Hospital, Stockholm, Sweden
26. Section Rheumatology and Sports Imaging, Department of Radiology, Medical University Innsbruck, Innsbruck, Austria
27. Department of Radiology, Private Institution of Ultrasonography, Athens, Greece