Ethics approval and consent to participate
WEST
The Regional Committee for Medical and Health Research Ethics (REC West) in Norway has approved the feasibility and the RCT study 16.04.2018 (REC 2018/344). All methods were performed in accordance with the Declaration of Helsinki. The respondents were informed that participation was voluntary, and that the data was anonymous. Informed consent was obtained from all participants legal guardian(s). The respondents signed an informed consent form stored securely.