1. Department of Psychiatry, Kaiser Permanente Northern California, San Francisco (Chung); Division of Research, Kaiser Permanente Northern California, Oakland (Jiang); Center for the Developing Brain, Child Mind Institute, New York (Milham); Center for Biomedical Imaging and Neuromodulation, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, N.Y. (Milham); Genetic Epidemiology Research Branch, NIMH, Bethesda, Md. (Merikangas, Paksarian).