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Article History

Received: 23 May 2023

Accepted: 11 September 2023

First Online: 19 September 2023

Declarations

:

: The Start Young study was approved by the Norwegian Centre for Research Data (Reference number: 60981) and an ethics committee at the University of Agder, Norway. Informed consent was obtained from all the participants and parents/legal guardians for the study. All data were anonymized. All study procedures were performed in accordance with the 1964 Helsinki declaration for ethical standards in research.

: Not applicable.

: The authors declare no competing interests.