{{author}}{{author}}{{($index > metadata.AuthorsAndEtalArray.length-1) ? ',' : '.'}}

Christine O’Farrelly, Beth Barker, Hilary Watt, Daphne Babalis, Marian Bakermans-Kranenburg, Sarah Byford, Poushali Ganguli, Ellen Grimås, Jane Iles, Holly Mattock, Julia McGinley, Charlotte Phillips, Rachael Ryan, Stephen Scott, Jessica Smith, Alan Stein, Eloise Stevens, Marinus van IJzendoorn, Jane Warwick & Paul Ramchandani.

Christine O’Farrelly ^1,2, Beth Barker ^1,2, Hilary Watt ³, Daphne Babalis ⁴, Marian Bakermans-Kranenburg ⁵, Sarah Byford ⁶, Poushali Ganguli ⁶, Ellen Grimås ¹, Jane Iles ^1,7, Holly Mattock ¹, Julia McGinley ⁸, Charlotte Phillips ¹, Rachael Ryan ¹, Stephen Scott ⁶, Jessica Smith ^1,4, Alan Stein ⁹, Eloise Stevens ^1,2, Marinus van IJzendoorn ¹⁰, Jane Warwick ¹¹, Paul Ramchandani ^1,2,*

¹ Division of Psychiatry, Imperial College London, London, UK
² Centre for Research on Play in Education, Development, and Learning, Faculty of Education, University of Cambridge, Cambridge, UK
³ School of Public Health, Imperial College London, London, UK
⁴ Imperial Clinical Trials Unit, Imperial College London, London, UK
⁵ Clinical Child and Family Studies, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
⁶ Institute of Psychology, Psychiatry, and Neuroscience, King’s College London, London, UK
⁷ School of Psychology, University of Surrey, Guildford, UK
⁸ Netmums, London, UK
⁹ Department of Psychiatry, University of Oxford, Oxford, UK
¹⁰ Department of Psychology, Education, and Child Studies, Erasmus University Rotterdam, Rotterdam, the Netherlands
¹¹ Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
^* Corresponding author Email: pr441@cam.ac.uk

Declared competing interests of authors: Marinus van IJzendoorn and Marian Bakermans-Kranenburg declare themselves as two of the developers of the VIPP-SD intervention. Paul Ramchandani has received funding in the form of a donation for research from the LEGO Foundation (Billund, Denmark). He was a member of the Psychological and Community Therapies Panel from 2009 to 2014.