Bongo, Ann-Kristine Sara
Brustad, Magritt
Oscarson, Nils
Jönsson, Birgitta
Funding for this research was provided by:
Helse- og Omsorgsdepartementet (10/1263)
Article History
Received: 21 November 2019
Accepted: 29 March 2020
First Online: 10 April 2020
Change Date: 7 July 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12903-021-01631-y
Ethics approval and consent to participate
: The regional committee for medical and health research ethics of the University of Tromsø, Norway, approved the study (2012/1902/REK Nord). All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.