Winpenny, Eleanor M. http://orcid.org/0000-0003-1933-0168
van Sluijs, Esther M. F.
White, Martin
Klepp, Knut-Inge
Wold, Bente
Lien, Nanna
Funding for this research was provided by:
Norges Forskningsråd (NO)
United Kingdom Clinical Research Collaboration (MR/K023187/1)
Medical Research Council (MC_UU_12015/7)
Article History
Received: 20 March 2018
Accepted: 29 August 2018
First Online: 10 September 2018
Ethics approval and consent to participate
: The study was approved by the Norwegian Data Inspectorate and has been conducted in full accordance with ethical principles, including the provisions of the World Medical Association Declaration of Helsinki. Written consent from parents/guardians and participants was required prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.
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