1. Behavioural and Brain Sciences Unit; Institute of Child Health, University College of London; London UK
2. Eating Disorders Research Unit, Institute of Psychiatry, Psychology and Neuroscience; King's College London; London UK
3. Department of Psychiatry, Faculty of Medicine; University of Geneva; Geneva Switzerland
4. Child and Adolescent Psychiatry Division, Department of Child and Adolescent Health; Geneva University Hospital; Geneva Switzerland