Kvalheim, Olav M.
Rajalahti, Tarja
Aadland, Eivind
Funding for this research was provided by:
Norges Forskningsråd (221047/F40)
University of Bergen
Article History
Received: 19 March 2022
Accepted: 24 August 2022
First Online: 2 September 2022
Declarations
:
: The authors declare no conflict of interest.
: Our procedures and methods conform to ethical guidelines defined by the World Medical Association’s Declaration of Helsinki and its subsequent revisions. The South-East Regional Committee for Medical Research Ethics in Norway approved the ASK study protocol (reference number 2013/1893). Prior to all testing, we obtained written informed consent from each child’s parents or legal guardian and from the responsible school authorities. The ASK study is registered in Clinicaltrials.gov with identification number: NCT02132494.