1. Anna Freud National Centre for Children and Families, Child Outcomes Research Consortium, The Kantor Centre of Excellence, London, UK
2. Clinical, Educational and Health Psychology, University College London, London, UK
3. Evidence Based Practice Unit, Anna Freud National Centre for Children and Families, The Kantor Centre of Excellence, London, UK
4. Institute of Psychiatry, King’s College London, London, UK
5. Anna Freud National Centre for Children and Families, The Kantor Centre of Excellence, London, UK
6. Oxford Health NHS Foundation Trust, Oxford, UK
7. NHS England & NHS Improvement, London, UK
8. Southern Health NHS Foundation Trust, Tatchbury Mount, Calmore, UK