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Article History

Received: 8 December 2025

Accepted: 8 February 2026

First Online: 23 February 2026

Declarations

:

: The authors declare no competing interests.

: Johan Danielson has received remuneration from Viatris/Meda Company as a speaker at national meetings in Sweden. The other authors have no conflicts of interest relevant to this article to disclose.

: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Regional Committee on Medical Research Ethics in Uppsala, Dnr 2014/219 and Dnr 2018/486.

: Oral and written informed consent was obtained from patients/parents/legal guardians.