Published on in Vol 21, No 12 (2019): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/16176, first published
.
1 Cyberpsychology Research Group, Faculty of Medicine & Health, The University of Sydney, Camperdown, Australia
2 Kids Helpline, Yourtown, Brisbane, Australia
*these authors contributed equally