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Authors
Gyll, Johanna
Ridell, Karin
Öhlund, Inger
Karlsland Åkeson, Pia
Johansson, Ingegerd
Lif Holgerson, Pernilla https://orcid.org/0000-0002-2779-5865
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Funding
Funding for this research was provided by:
Västerbotten Läns Landsting (7002666, 7002838)
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More Information
Article History
Received: 26 June 2017
Accepted: 4 January 2018
First Online: 16 January 2018
Competing interest
: The authors declare that they have no competing interests.
: Approval of the study was given by the Regional Ethical Review Board in Umeå, Sweden (References 2012–158-31 M and 2014–103-32 M). Prior to inclusion, each subject got a full written and oral explanation of the purpose and procedure of the study and written informed consent was obtained from the caregivers of the children.
: Not applicable.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
