Fischer, J. http://orcid.org/0000-0001-9000-2816
Skeie, M. S.
Rosendahl, K.
Tylleskär, K.
Lie, S.
Shi, X.-Q.
Gil, E. Grut
Cetrelli, L.
Halbig, J.
von Wangenheim Marti, L.
Rygg, M.
Frid, P.
Stoustrup, P.
Rosèn, A.
Funding for this research was provided by:
Norsk Revmatikerforbund
Article History
Received: 29 June 2020
Accepted: 25 August 2020
First Online: 13 October 2020
Ethics approval and consent to participate
: The study was approved by the regional ethics committee (2012/542/REK vest). Written informed consents were obtained from the parents/legal representatives and the adolescents. The study was registered at ClinicalTrials.gov (No: NCT03904459).
: Not applicable.
: The authors declare that they have no competing interests.