Published on in Vol 9 , No 1 (2021) :January
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/22633, first published
.

1 Science Centre Health and Technology, Faculty of Health and Social Sciences, University of South-Eastern Norway, Drammen, Norway
2 Institute for Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway