Published on in Vol 6, No 2 (2019): Apr-Jun
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12139, first published
.
1 Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
2 Department of Medical and Health Sciences, Linköping University, Linköping, Sweden