Published on in Vol 7, No 3 (2018): March
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10018, first published
.
1 Evidence Based Practice Unit, University College London and Anna Freud National Centre for Children and Families, London, United Kingdom
2 Anna Freud National Centre for Children and Families, London, United Kingdom
*all authors contributed equally