Nikkilä, Atte https://orcid.org/0000-0003-0292-2386
Lohi, Olli https://orcid.org/0000-0001-9195-0797
Abrahamsson, Jonas
Griskevicius, Laimonas
Hallböök, Helene
Jónsson, Ólafur Gísli
Lund, Bendik
Marquart, Hanne Vibeke https://orcid.org/0000-0001-9740-6522
Overgaard, Ulrik
Palk, Katrin
Pruunsild, Kaie
Quist-Paulsen, Petter
Toft, Nina
Vaitkeviciene, Goda Elizabeta
Wartiovaara-Kautto, Ulla https://orcid.org/0000-0002-2803-2712
Heyman, Mats https://orcid.org/0000-0001-7637-1949
Vettenranta, Kim https://orcid.org/0000-0002-8535-0135
Schmiegelow, Kjeld https://orcid.org/0000-0002-0829-4993
Article History
Received: 15 May 2025
Revised: 10 September 2025
Accepted: 13 October 2025
First Online: 27 October 2025
Competing interests
: The authors declare no competing interests.
: The NOPHO ALL2008 study (EudraCT 2008-003235-20) was approved by the regional research ethics committee of the Capital Region of Denmark (Protocol No. H-2-2010-002), the Danish Data Protection Agency (Journal No. 2012-58-0004), and by the scientific ethical review boards of all involved countries. All patients gave written informed consent, and the study was conducted in accordance with the Declaration of Helsinki (version 2008).