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Authors
Haugen, Thomas https://orcid.org/0000-0001-5929-0389
Seiler, Stephen
Sandbakk, Øyvind
Tønnessen, Espen
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Article History
Received: 22 July 2019
Accepted: 23 October 2019
First Online: 21 November 2019
Ethics Approval and Consent to Participate
: Not applicable.
: Not applicable.
: The authors, Thomas Haugen, Stephen Seiler, Øyvind Sandbakk, and Espen Tønnessen, declare that they have no competing interests.
