Funding for this research was provided by:
Svenska Forskningsrådet Formas
the Health and Medical Care Executive Board of the Västra Götaland
Västerbotten’s Association Against Rheumatism
The Swedish Association Against Rheumatism
The Swedish Society of Medicine
The Göteborg Medical Society
the Region Västra Götaland
An unrestricted grant from Novartis
the County of Västerbotten (agreement concerning research and education of doctors).
Text and Data Mining valid from 2018-12-01
Received: 30 April 2018
Accepted: 3 December 2018
First Online: 27 December 2018
Ethics approval and consent to participate
: The study was approved by the regional ethics committee in Gothenburg, Sweden (reference number Dnr 597-08) and was performed in accordance with the Helsinki declaration. All participants gave their written informed consent.
: Not applicable.
: LTHJ has received Advisory Board Fees from Novartis, Celgene and MSD, outside the submitted work. HFd’E has received Advisory Board Fees from Sandoz, Novartis and Abbvie outside the submitted work and an unrestricted grant from Novartis. LL, JRB, AD and EK report no competing interests.
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