Vold, Jørn Henrik http://orcid.org/0000-0001-8701-7638
Skurtveit, Svetlana
Aas, Christer
Johansson, Kjell Arne
Fadnes, Lars Thore
Funding for this research was provided by:
Norges Forskningsråd
Article History
Received: 10 April 2019
Accepted: 2 July 2020
First Online: 20 July 2020
Ethics approval and consent to participate
: The Regional Committee for Medical and Health Research Ethics (REC), REC West, Norway, has approved the use of registry data for the study (reference number 2018/939/REK Vest, June 19, 2018). The REC committee is appointed by the Norwegian Ministry of Education and Research. No informed consent from the patients was necessary.
: Not applicable.
: None of the authors have competing interests.