1. Virginia Commonwealth University Health System; Richmond VA USA
2. University of California San Diego; San Diego CA USA
3. Metropolitan Liver Diseases/Gastroenterology Center; Fairfax VA USA
4. John Hopkins University; Baltimore MD USA
5. University of North Carolina; Chapel Hill NC USA
6. Thomas Jefferson University Hospital; Philadelphia PA USA
7. Our Lady of Lourdes Medical Center; Camden NJ USA
8. Duke University School of Medicine/Boice-Willis Clinic; Rocky Mount NC USA
9. Saint Vincent Hospital; Worcester MA USA
10. Division of Gastroenterology, Hepatology and Nutrition; University of Florida; Gainesville FL USA
11. Saint Louis University; Saint Louis MO USA