1. INSERM, U687, and Université Paris XI, IFR69, Villejuif, France
2. Departments of Psychology and Neuroscience and Psychiatry and Behavioral Sciences, and Institute for Genome Sciences and Policy, Duke University, Durham, North Carolina
3. MRC Social, Genetic and Developmental Psychiatry Centre
4. Department of Health Services and Population Research, Institute of Psychiatry, King's College, London, United Kingdom