1. Section of Neuropsychiatry, Department of Psychiatry, Dartmouth Medical School, Lebanon, New Hampshire.
2. Computational Genetics Laboratory, Dartmouth Medical School, Lebanon, New Hampshire.
3. Section of Molecular Pathology, Dartmouth Medical School, Lebanon, New Hampshire.
4. Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana.
5. Section of Biostatistics and Epidemiology of the Department of Community and Family Medicine, Dartmouth Medical School, Lebanon, New Hampshire.