Received: 12 May 2020
Accepted: 23 August 2020
First Online: 31 August 2020
Ethics approval and consent to participate
: Regional Committee on Health Research Ethics approved the study (case number: 1–10–72-147-17). The study was done in agreement with the Declaration of Helsinki and was registered at ExternalRef removed<b><i>(identifier:</i></b>ExternalRef removed<b><i>).</i></b><i>W</i>ritten informed consent was obtained from each subject.
: Not applicable.
: The authors declare that they have no competing interests.