Andreassen, Renate
Jönsson, Birgitta
Hadler-Olsen, Elin
Article History
Received: 28 December 2021
Accepted: 22 March 2022
First Online: 30 March 2022
Declarations
:
: The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Northern Norwegian Regional Committee for Medical Research Ethics (REK Nord Nr. 79888). Informed consent was obtained from all subjects involved in the study.
: Not applicable.
: The authors declare no competing interests.