1. Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience King's College London London UK
2. Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience King's College London London UK
3. Centre for Innovation in Mental Health, School of Psychology University of Southampton Southampton UK
4. Department of Medicine University of Barcelona Barcelona Spain
5. Department of Child and Adolescent Psychiatry Aarhus University Aarhus Denmark