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Authors
Merkus, Suzanne L. https://orcid.org/0000-0003-0945-3738
Lunde, Lars-Kristian
Koch, Markus
Wærsted, Morten https://orcid.org/0000-0002-9570-2181
Knardahl, Stein https://orcid.org/0000-0002-7300-8519
Veiersted, Kaj Bo https://orcid.org/0000-0003-1221-384X
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Funding
Funding for this research was provided by:
The Research Council of Norway (218358)
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Article History
Received: 2 May 2018
Accepted: 29 October 2018
First Online: 15 November 2018
Compliance with ethical standards
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: This project was funded by The Research Council of Norway, project number 218358. The Research Council of Norway did not have any role in the study design, the collection, analysis and interpretation of the data, nor in the writing of the manuscript or the decision to submit this paper for publication. The authors declare that they have no conflict of interest.
: The study was approved by The Regional Committee for Medical and Health Research Ethics in Norway (2014/138/REK south-east D). All procedures of the study were in accordance with the ethical standards of the national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
