Acknowledgements
The Danish Rheumatologic Biobank is acknowledged for biological material and for data regarding handling and storage. The Danish Regions and the Danish Rheumatism Association are acknowledged for funding of the Danish Rheumatologic Biobank. We thank the Departments of Biochemistry and Rheumatology for collection of blood samples within the Danish Rheumatologic Biobank and for reporting of corresponding clinical data in the DANBIO registry. We thank Rolf A. Klaassen at the Department of Medical Biochemistry, Oslo University Hospital, Radiumhospitalet, Oslo, Norway, for technical assistance, and Zitelab for data management.
This study was supported by an unrestricted grant from AbbVie.