1. Department of Psychiatry; School of Medicine, University of Pittsburgh; Pittsburgh Pennsylvania
2. Department of Neurology; School of Medicine, University of Pittsburgh; Pittsburgh Pennsylvania
3. Department of Epidemiology; Graduate School of Public Health, University of Pittsburgh; Pittsburgh Pennsylvania
4. Department of Biostatistics; Graduate School of Public Health, University of Pittsburgh; Pittsburgh Pennsylvania
5. Department of Sociology, Anthropology, and Gerontology; Youngstown State University; Youngstown Ohio
6. Department of Medicine; School of Medicine, University of Pittsburgh; Pittsburgh Pennsylvania
7. Department of Human Genetics; Graduate School of Public Health, University of Pittsburgh; Pittsburgh Pennsylvania