Aronsson, M. http://orcid.org/0000-0003-4631-8420
Bergman, S. http://orcid.org/0000-0002-6294-538X
Lindqvist, E. http://orcid.org/0000-0002-9937-6352
Andersson, M. L. E. http://orcid.org/0000-0002-0217-5029
Funding for this research was provided by:
Reumatikerförbundet
Lund University
Article History
Received: 18 August 2021
Revised: 16 November 2021
Accepted: 17 November 2021
First Online: 23 November 2021
Declarations
:
: All patients signed a written consent to participate in the study, including consent for publication. Ethical approval was obtained for the tight control cohort (LU 2012/604, LU2018/824) and for the conventional cohort (LU 398–01) from the Regional Ethical Review Board at Lund University, Lund, Sweden. The study followed the guidelines from the Helsinki Declaration, and the management of the database was according to ISO 9001.
: The authors declare no competing interests.