Ethics approval and consent to participate
The ethical principles of the research described in the World Medical Association Declaration of Helsinki (WMA, 2013) were followed. The Regional Ethical Review Board in Lund approved the study (Dnr 2018/28).All participants provided written informed consent before entering the study, and there were no visible risks for the participants to take part in the study.The participant’s identity is coded so that all incoming data is de-personalized, and the code key is stored on a Blekinge Institute of Technology server.Analysis of the material will take place at the group level. Therefore, no individual participant will be identified when presenting the results.