Arnason, Sigurdur
Skogman, Barbro H.
Funding for this research was provided by:
Uppsala University
Article History
Received: 3 December 2021
Accepted: 4 May 2022
First Online: 9 June 2022
Declarations
:
: All procedures performed in this study involving human participants (children) were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Approval of the study was obtained from the Regional Ethics Committee in Linköping (Dnr 98103 and Dnr 02–159) and Uppsala (Dnr 2010/106), Sweden. Every child was assigned a specific study-ID. Written informed consent was received from parents/guardians.
: Not applicable.
: The authors declare that they have no financial or non-financial competing interest.