1. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
2. Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland
3. Center for Liver Disease and Transplantation, Columbia University Medical Center, New York, New York
4. Department of Hepatology, Baylor University Medical Center, Dallas, Texas
5. Department of Medicine, Duke University School of Medicine, Durham, North Carolina
6. Center for Liver Diseases, Thomas A. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
7. Division of Gastroenterology and Hepatology, Loma Linda University Health, Loma Linda, California
8. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
9. Division of Gastroenterology and Hepatology, University of Arkansas Medical School, Little Rock
10. Division of Gastroenterology and Hepatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
11. Division of Hepatology, Dallas Veterans Administration Medical Center, Dallas, Texas
12. Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
13. Department of Medicine, University of California, San Francisco