S. J. Webb¹, A. Naples², A. R. Levin³, G. Hellemann⁴, C. Sugar⁵, D. Senturk⁴, M. Santhosh⁶, H. Borland⁶, T. McAllister⁷, S. Hasselmo⁷, F. Shic⁸, M. Murias⁹, J. Dziura¹⁰, C. Brandt¹¹, R. A. Bernier¹², K. Chawarska⁷, G. Dawson¹³, S. Faja¹⁴, S. Jeste¹⁵, C. A. Nelson¹⁶ and J. McPartland¹⁷, (1)Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, (2)Yale Child Study Center, Yale University School of Medicine, New Haven, CT, (3)Neurology, Boston Children's Hospital / Harvard Medical School, Brookline, MA, (4)UCLA, Los Angeles, CA, (5)Department of Biostatistics, University of California Los Angeles, Los Angeles, CA, (6)Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, (7)Child Study Center, Yale University School of Medicine, New Haven, CT, (8)Center for Child Health, Behavior, and Development, Seattle Children's Research Institute, Seattle, WA, (9)Duke Center for Autism and Brain Development, Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, (10)Emergency Medicine, Yale University School of Medicine, New Haven, CT, (11)Yale University, New Haven, CT, (12)Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, (13)Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, (14)Boston Children's Hospital / Harvard Medical School, Brookline, MA, (15)Pediatrics, Children's Hospital Los Angeles, Los Angeles, CA, (16)Department of Developmental Medicine, Boston Children's Hospital, Boston, MA, (17)Yale Child Study Center, Yale Child Study Center, New Haven, CT