1. Division of Neurology; Department of Pediatrics; Cincinnati Children's Hospital Medical Center; University of Cincinnati; Cincinnati Ohio
2. Department of Psychiatry; Boston Children's Hospital and Harvard Medical School; Boston Massachusetts
3. Division of Child & Adolescent Psychiatry; University of Cape Town; Cape Town South Africa
4. National Institute of Neurological Disorders and Stroke; National Institutes of Health; Bethesda Maryland
5. Department of Neurology; Boston Children's Hospital; Harvard Medical School; Boston Massachusetts
6. Autism Speaks; Boston Massachusetts
7. Division of Developmental & Behavioral Pediatrics; Department of Pediatrics; Cincinnati Children's Hospital Medical Center; University of Cincinnati; Cincinnati Ohio