Published on in Vol 22, No 2 (2020): February
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/16407, first published
.
1 Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, Australia
2 College of Computers and Information Systems, Umm Al-Qura University, Makkah, Saudi Arabia