Funding for this research was provided by:
Oslo University Hospital
Universitetet i Oslo
Olafstiftelsen
University of Oslo
Article History
Received: 15 May 2023
Accepted: 27 August 2023
First Online: 14 September 2023
Declarations
:
: Adolescents and their parents provided written informed consent prior to inclusion. The study was approved by the Regional Committee for Medical Research Ethics, South-East Norway. All methods were carried out in accordance with relevant guidelines and regulations.The authors declare that they have no competing interests.
: Covered by information to patients approved by Regional Committee for Medical Research, South-East Norway.
: The authors declare no competing interests.