Holmgren, Anton
Niklasson, Aimon
Nierop, Andreas F. M.
Butler, Gary
Albertsson-Wikland, Kerstin
Article History
Received: 30 March 2021
Revised: 27 September 2021
Accepted: 28 September 2021
First Online: 3 November 2021
Competing interests
: A.F.M.N. works for Muvara, Multivariate Analysis of Research Data, Statistical Consultation, the Netherlands. The authors declare no competing interests.
: All study subjects and their parents or guardians gave informed written consent to participate in research studies as required by the local ethics committees.