Skjaker, Stein Arve http://orcid.org/0000-0002-8172-913X
Enger, Martine
Engebretsen, Lars
Brox, Jens Ivar
Bøe, Berte
Funding for this research was provided by:
Sophies Minde Ortopedi
Article History
Received: 31 October 2019
Accepted: 23 March 2020
First Online: 8 April 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: In accordance with Norwegian legal procedures, the study was approved as an internal audit project by the Data Protection Officer of Oslo University Hospital, and performed in accordance with the revised Helsinki declaration.
: Written consent was not necessary for this study.