Published on in Vol 8 , No 11 (2020) :November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18614, first published
.

1 OsloMet - Oslo Metropolitan University of Applied Sciences, Oslo, NO
2 Faculty of Heath and Social Sciences, University of South-Eastern Norway, Campus Vestfold, NO
*all authors contributed equally