Funding for this research was provided by:
Scandinavian Rheumatology Research Foundation
The Finnish Society of Rheumatology
The Tampere Rheumatism Foundation
Received: 5 February 2020
Accepted: 7 August 2020
First Online: 17 November 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Tampere University Hospital, Finland, and carried out in accordance with the Declaration of Helsinki. Written informed consent was obtained from all patients.
: Not applicable.
: The authors declare no conflict of interest.