Published on in Vol 7, No 2 (2019): February
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11636, first published
.
1 Department of Psychology, University of Milano-Bicocca, Milano, Italy
2 Department of Clinical, Educational & Health Psychology, University College London, London, United Kingdom
3 Institute of Digital Health, University College London, London, United Kingdom