1. Division of Digestive and Liver Diseases UT Southwestern Medical Center at Dallas Dallas TX
2. Division of Gastroenterology and Hepatology University of Michigan Ann Arbor MI
3. Department of Obstetrics and Gynecology UT Southwestern Medical Center at Dallas Dallas TX
4. Department of Public Health Sciences Medical University of South Carolina Charleston SC
5. Department of Medicine University of Texas Medical Branch Galveston TX