Fischer, J.
Augdal, T. A.
Angenete, O.
Gil, E. G.
Skeie, M. S.
Åstrøm, A. N.
Tylleskär, K.
Rosendahl, K.
Shi, X.-Q.
Rosén, A.
,
Funding for this research was provided by:
norsk revmatikerforbund
Article History
Received: 26 July 2021
Accepted: 30 September 2021
First Online: 12 October 2021
Declarations
:
: The study was approved by the regional committees for medical and health research ethics (REC west, Universitetet i Bergen, Det medisinske fakultet, Postboks 7804, 5020 Bergen), reference number: 2012/542/REC west. Written informed consent was obtained from the parents or legal representatives of the children and adolescents. The study was registered in ClinicalTrials.gov (No: NCT03904459).
: Not applicable.
: The authors declare that they have no competing interests.