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Authors
Reneflot, Anne https://orcid.org/0000-0003-0536-5271
Kaspersen, Silje L.
Hauge, Lars Johan
Kalseth, Jorid
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Funding
Funding for this research was provided by:
Norges Forskningsråd (214298)
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Article History
Received: 9 August 2018
Accepted: 13 March 2019
First Online: 4 April 2019
Ethics approval and consent to participate
: The Regional Committee for Medical and Health Research Ethics granted approval for the research project (approval number 2012/852), and all registry owners consented to their data being utilized. As the study utilised existing registry data, no written or verbal consent to participate was required.
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
