Rognstad, Kristian
Helland, Siri Saugstad
Neumer, Simon-Peter
Baardstu, Silje
Kjøbli, John
Article History
Received: 31 January 2022
Accepted: 13 July 2022
First Online: 24 July 2022
Declarations
:
: The study was conducted in accordance with the Declaration of Helsinki and approved by the Regional Committee for Medical and Health Research Ethics – South East. All participants and legal guardians of minors have signed informed consent forms.
: Not applicable.
: All authors declare that they have no competing interests.