1. Department of Psychiatry; Washington University School of Medicine; St Louis; MO; USA
2. Department of Genetics; Southwest Foundation for Biomedical Research; San Antonio; TX; USA
3. Department of Biostatistics; University of Washington; Seattle; WA; USA
4. Department of Epidemiology; Michigan State University; East Lansing; MI; USA
5. Center for Inherited Disease Research; Johns Hopkins School of Medicine; Baltimore; MD; USA
6. Department of Biochemistry and Molecular Biology; Indiana University School of Medicine; Indianapolis; IN; USA
7. Department of Psychiatry; University of Connecticut; Farmington; CT; USA
8. Division of Health; Social and Economic Research; Research Triangle Institute International; Research Triangle Park; NC; USA
9. Department of Psychiatry; University of Iowa College of Medicine; Iowa City; IA; USA
10. Department of Psychology; University of Minnesota; Minneapolis; MN; USA
11. Division of Child Psychiatry; University of Iowa Hospitals; Iowa City; IA; USA
12. National Human Genome Research Institute; Bethesda; MD; USA
13. Department of Psychiatry; Indiana University School of Medicine; Indianapolis; IN; USA
14. Department of Psychiatry and Behavioral Sciences; State University of New York; Brooklyn; NY; USA
15. Department of Genetics; Washington University School of Medicine; St Louis; MO; USA
16. Department of Psychiatry; University of California-San Diego; La Jolla; CA; USA