1. Department of Child & Adolescent Psychiatry and Institute of Psychiatry, Psychology & Neuroscience and Maudsley Biomedical Research Centre for Mental Health, King's College London, London, United Kingdom.
2. Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience and Maudsley Biomedical Research Centre for Mental Health, King's College London, London, United Kingdom.
3. Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada.
4. Department of Pediatrics, University of Toronto, Toronto, Canada.
5. Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA.
6. Autism and Obsessive Compulsive Spectrum Program, Psychiatric Research Institute of Montefiore Einstein, Albert Einstein College of Medicine, Bronx, New York, USA.
7. Department of Psychiatry, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California, USA.
8. Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.
9. Department of Pediatrics, Marcus Autism Center, Emory University School of Medicine, Atlanta, Georgia, USA.
10. Department of Psychiatry, Duke Center for Autism and Brain Development, Duke University School of Medicine, Durham, North Carolina, USA.