1. Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology & Neuroscience King's College London London UK
2. Child and Adolescent Mental Health Services South London and Maudsley NHS Foundation Trust London UK
3. Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón School of Medicine Universidad Complutense, IiSGM, CIBERSAM Madrid Spain