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Authors
Gul, Kiran A. https://orcid.org/0000-0002-5395-7688
Strand, Janne
Pettersen, Rolf D.
Brun, Henrik
Abrahamsen, Tore G.
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Article History
Received: 28 September 2019
Accepted: 13 February 2020
First Online: 13 March 2020
Compliance with Ethical Standards
:
: All authors declare that there are no conflict of interest.
: The study was approved by the Regional Committee for Research Ethics (2014/2239) and the Data Protection Officer of Oslo University Hospital.
: Informed consent was obtained from parents of all participants.
