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Authors
Moss, Thomas
Helland, Christian A.
Mørkve, Svein H.
Wester, Knut http://orcid.org/0000-0001-8489-3931
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Funding
Funding for this research was provided by:
Helse Vest Regionalt Helseføretak (911065 and 911475)
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Article History
Received: 4 March 2019
Accepted: 25 June 2019
First Online: 5 August 2019
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the regional committee for medical and health research ethics (Regional - REC West) 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.
