Myhre, Jannicke Borch http://orcid.org/0000-0003-0797-8522
Andersen, Lene Frost
Holvik, Kristin
Astrup, Helene
Kristiansen, Anne Lene
Funding for this research was provided by:
Universitetet i Oslo (Not applicable)
Folkehelseinstituttet (Not applicable)
Article History
Received: 25 January 2019
Accepted: 26 June 2019
First Online: 9 July 2019
Ethics approval and consent to participate
: The Norwegian Centre for Research Data approved the study (project number 53936), and written informed consent was obtained from the mother/parents.
: Not applicable (no personal information is included in the manuscript).
: The authors declare that they have no competing interests.