Sæthre-Sundli, H. B. http://orcid.org/0000-0002-0361-5946
Løken, S. Y. http://orcid.org/0000-0003-2478-1641
Wang, N. J. http://orcid.org/0000-0003-0606-6644
Wigen, T. I. http://orcid.org/0000-0003-4082-6520
Funding for this research was provided by:
University of Oslo
Article History
Received: 8 February 2022
Accepted: 12 June 2022
First Online: 7 July 2022
Declarations
:
: The authors declare that they have no conflict of interest.
: A detailed information sheet in simple nontechnical language was provided in advance for parents and children. Written, informed consent was obtained from parents at both examinations. No compensation was provided for the participating patients.
: The study was performed in accordance with the ethical standards of the institutional and national research committee. The Regional Committee for Medical Research Ethics approved the study (2.200.54 and 2013/1881).