Received: 17 June 2021
Accepted: 2 November 2021
First Online: 15 November 2021
: The study was approved by local representatives for the Norwegian Date Protection authority (2016/2751) and the local Ethical Committee (REK 2015/2444a). Verbal and written information both about the study and the rights to withdraw at any time was given to the participants. The participants had the right to withdraw before, during and after the study without any consequences, which was emphasised. A written consent form was signed by all participants on the first day of the study. None of the invited study participants denied participation or withdrew their consent to participate before or after the study period.
: Not applicable.
: The authors declare that they have no competing interests.