1. Options Health Research Tulsa OK USA
2. Mercy Medical Center Baltimore MD USA
3. The Texas Liver Institute University of Texas Health Science Center San Antonio TX USA
4. The Research Institute Springfield MA USA
5. Associated Gastroenterology/Advanced Clinical Research Institute Anaheim CA USA
6. University Hospital/Case Western Medical Center Cleveland OH USA
7. Metropolitan Research Arlington VA USA
8. Digestive Disease Associates Baltimore MD USA
9. Texas Clinical Research Institute Arlington TX USA
10. Charlotte Gastroenterology and Hepatology Charlotte NC USA
11. Bristol‐Myers Squibb Wallingford CT USA
12. Bristol‐Myers Squibb Hopewell NJ USA
13. Bristol‐Myers Squibb Princeton NJ USA