Funding for this research was provided by:
Norges Forskningsråd (ES611813)
Liaison Committee between Central Norway Regional Health Authority and Norwegian University of Science and Technology
Article History
Received: 2 April 2019
Accepted: 10 June 2020
First Online: 18 June 2020
Compliance with ethical standard
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: The Regional Committee for Medical and Health Research Ethics, Mid-Norway, approved the study. Informed written consent was obtained from all parents on behalf of themselves and their children before their inclusion in the study.