©Susan Fletcher, Janine Clarke, Samineh Sanatkar, Peter Baldwin, Jane Gunn, Nick Zwar, Lesley Campbell, Kay Wilhelm, Mark
Harris, Helen Lapsley, Dusan Hadzi-Pavlovic, Judy Proudfoot. Originally published in the Journal of Medical Internet Research
(http://www.jmir.org), 24.05.2019. This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/)