Hagen, Knut http://orcid.org/0000-0003-2111-8895
Åsberg, Anders Nikolai
Uhlig, Benjamin L.
Tronvik, Erling
Brenner, Eiliv
Sand, Trond
Article History
Received: 14 May 2019
Accepted: 10 June 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: This study was approved by the Regional Committee for Ethics in Medical Research (#2018/2422/Rek Midt). The participants have given written informed consent.
: Not applicable.
: None of the authors have any competing interests in the manuscript.