1. King’s College London, MRC Centre for Neurodevelopmental Disorders, London, UK
2. King’s College London, Health Services and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, London, UK
3. King’s College London, Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, London, UK
4. King’s College London, National Institute for Health Research Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and, London, UK
5. Faculty of Medicine, University of New South Wales, School of Psychiatry, Sydney, Australia
6. Department of Addictions, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
7. Department of Public Mental Health, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
8. School of Nursing & Health Sciences, University of Dundee, Dundee, UK
9. Cambridgeshire and Peterborough NHS Foundation Trust, University of Cambridge, Cambridge, UK
10. Discipline of Psychiatry, School of Medicine, Trinity College, Dublin, Ireland
11. Department of Psychiatry, University of Nottingham, Nottingham, UK