Published on in Vol 21, No 3 (2019): March
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/9240, first published
.
1 Delft University of Technology, Delft, Netherlands
2 Faculty of Industrial Design Engineering, Delft University of Technology, Delft, Netherlands
3 Netherlands Organisation for Applied Scientific Research (TNO), Soesterberg, Netherlands