1. Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark
2. Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Centre for Head and Orthopaedics, Rigshospitalet, Glostrup, Denmark
3. Department of Rheumatology, King Christian X’s Hospital for Rheumatic Diseases, Graasten, Denmark
4. Department of Rheumatology, Zealand University Hospital, Køge, Denmark
5. Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
6. Department of Radiology, Herlev and Gentofte University Hospital, Herlev, Denmark
7. Department of Radiology, Bispebjerg and Frederiksberg University Hospital, Frederiksberg, Denmark
8. Musculoskeletal Statistics Unit, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
9. Department of Rheumatology, Odense University Hospital, Odense, Denmark
10. Department of Rheumatology, Department of Clinical Medicine, Aarhus University Hospital, Aarhus University, Aarhus, Denmark
11. Center for Rheumatology and Spine Diseases, Copenhagen University Hospital Gentofte, Hellerup, Denmark
12. Department of Rheumatology, Bispebjerg and Frederiksberg University Hospital, Frederiksberg, Denmark
13. Department of Rheumatology, Silkeborg Hospital, Silkeborg, Denmark
14. Department of Rheumatology, Hjørring Hospital, Hjørring, Denmark
15. The Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
16. ZiteLab Aps, Copenhagen, Denmark
17. Department of Radiology, Silkeborg Hospital, Silkeborg, Denmark
18. Department of Radiology, Aarhus University Hospital, Aarhus, Denmark