1. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh Pittsburgh, Pennsylvania
2. Department of Psychiatry, W.P.I.C, University of Pittsburgh Pittsburgh, Pennsylvania
3. Department of Internal Medicine, University of Texas Health Science Center Dallas, Texas
4. Department of Pathology, School of Medicine, University of Pittsburgh Pittsburgh, Pennsylvania
5. Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh Pittsburgh, Pennsylvania
6. Division of Endocrinology and Metabolism, Department of Pediatrics/School of Medicine, Children's Hospital of Pittsburgh Pittsburgh, Pennsylvania