Albertsson-Wikland, Kerstin http://orcid.org/0000-0003-3167-0667
Niklasson, Aimon http://orcid.org/0000-0001-5839-4207
Gelander, Lars http://orcid.org/0000-0003-1728-4014
Holmgren, Anton http://orcid.org/0000-0003-0940-8726
Nierop, Andreas F. M. http://orcid.org/0000-0002-6709-4836
Funding for this research was provided by:
University of Gothenburg
Article History
Received: 11 May 2021
Accepted: 15 October 2021
First Online: 13 November 2021
Declarations
:
: Ethical approval was obtained from the Regional Ethics Review Board in Gothenburg, (Ad 91<b>–</b>92/131<b>–</b>93 and Ad 444<b>–</b>08 T062<b>–</b>09). Informed consent was given by participants and parents of individuals <b><</b> 18 years of age. Studies were conducted in accordance with the principles of the Declaration of Helsinki.
: Not applicable.
: AFMN works for Muvara, Multivariate Analysis of Research Data, Statistical Consultation, the Netherlands. KAW, AN, AH, and LG declare that they have no competing interests.