Nakken, Erlend Iversen
Grinde, Frithjof
Vaaler, Arne
Drange, Ole Kristian
Brodtkorb, Eylert
Sæther, Sverre Georg
Article History
Received: 30 August 2021
Accepted: 3 November 2021
First Online: 15 December 2021
Declarations
:
: All participating patients gave written informed consent. The study was conducted in accordance with the Helsinki Declaration and approved by The Regional Committee for Medical and Health Research Ethics of Central Norway (2011/137).
: Not applicable.
: The authors declare that they have no competing interests.