Steene-Johannessen, Jostein https://orcid.org/0000-0002-3710-9021
Anderssen, Sigmund Alfred
Kolle, Elin
Hansen, Bjørge Herman
Bratteteig, Mari
Dalhaug, Emilie Mass
Andersen, Lars Bo
Nystad, Wenche
Ekelund, Ulf
Dalene, Knut Eirik
Funding for this research was provided by:
Helsedirektoratet
Folkehelseinstituttet
Norges Forskningsråd (249932/F20)
Article History
Received: 24 June 2020
Accepted: 8 April 2021
First Online: 26 April 2021
Declarations
:
: The Regional Committee for Medical Research Ethics approved PANCS1 (S-04305) and Norwegian Social Science Data Service approved all three studies. Parental/legal guardian consent, and child assent were obtained in all studies. Consent to participate is outlined in the main methods section.
: Not applicable.
: The authors declare that they have no competing interests.