Funding for this research was provided by:
Sundhedsvidenskabelige Fakultet, Aarhus Universitet
Aage Bangs Foundation
Bjarne Jensen Foundation
Text and Data Mining valid from 2018-11-19
Received: 22 May 2018
Accepted: 14 October 2018
First Online: 19 November 2018
Ethics approval and consent to participate
: Samples were collected at the outpatient clinic at Aarhus University Hospital. All samples were obtained after informed written consent according to the Declaration of Helsinki and approved by the Local Ethics Committee (project number 20121329) and the Danish Data Protection Agency.
: Not applicable.
: TWK is an Editorial Board Member for BMC Rheumatology. The authors’ declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.