Funding for this research was provided by:
Västra Götalandsregionen (VGFOUREG-383071)
Rune och Ulla Amlövs Stiftelse för Neurologisk och Reumatologisk Forskning (.)
Reumatikerdistriktet i Göteborg (.)
Göteborgs Läkaresällskap (.)
Stiftelsen Reuma Forskningsfond Margareta (.)
Svenska Läkaresällskapet (SLS-409021)
Swedish state under the agreement between the Swedish Government and the county councils, the ALF-agreement (ALFGBG-64220)
The Swedish state under the agreement between the Swedish Government and the county councils, the ALF-agreement (ALFGBG-825511)
Text and Data Mining valid from 2019-11-27
Received: 27 March 2019
Accepted: 1 October 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: The study was approved by the Regional Ethics Committee in Gothenburg and carried out in accordance with the Helsinki Declaration. All participants gave their written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.