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Authors
Schmidt, Malte
Enger, Martine
Pripp, Are Hugo
Nordsletten, Lars
Moosmayer, Stefan
Melhuus, Knut
Brox, Jens Ivar
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Article History
Received: 5 June 2021
Accepted: 25 August 2021
First Online: 9 September 2021
Declarations
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: The study was approved by the Norwegian Regional Ethics Committee South East (2015/195) and performed in accordance with the Helsinki declaration. Written informed consent was obtained from all participants in the study.
: Not applicable
: ME received grants from Sophies Minde Ortopedi AS. Sophies Minde Ortopedi AS is a non-commercial subsidiary company of Oslo University Hospital. The other authors have declared no competing interests.
