1. Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Centre for Head and Orthopaedics, Rigshospitalet, Glostrup, Denmark
2. Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
3. DANBIO Registry, Center for Rheumatology and Spine Diseases, Centre for Head and Orthopaedics, Rigshospitalet, Glostrup, Denmark
4. Department of Medicine and Oncology, Copenhagen University Hospital at Herlev, Herlev, Denmark
5. Crescendo Bioscience Inc., San Francisco, CA, USA
6. King Christian X Hospital for Rheumatic Diseases, South Jutland Hospital, Gråsten, Denmark
7. Department of Rheumatology, Aarhus University Hospital, and Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
8. Department of Rheumatology C, Odense University Hospital, Odense, Denmark
9. Diagnostic Centre, Silkeborg Regional Hospital, Silkeborg, Denmark
10. Department of Medicine, Vejle Regional Hospital, Vejle, Denmark
11. Department of Rheumatology, Vendsyssel Hospital, Hjørring, Denmark
12. Department of Rheumatology, Aalborg University Hospital, Aalborg, Denmark
13. Department of Rheumatology, Viborg Regional Hospital, Viborg, Denmark