1. Department of Medicine, University of Washington, Seattle, WA 98195, USA.
2. Department of Psychiatry, University of Washington, Seattle, WA 98195, USA.
3. Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.
4. Child Psychiatry Branch, National Institute of Mental Health, National Institutes of Health (NIH), Bethesda, MD 20892, USA.
5. Department of Genome Sciences, University of Washington, Seattle, WA98195, USA.