1. Department of Gastroenterology, Hepatology and Nutrition, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA;
2. University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA;
3. Department of Internal Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA;
4. Department of Gastroenterology, Stanford University, Palo Alto, California, USA;
5. Department of Internal Medicine, Cleveland Clinic, Cleveland, Ohio, USA;
6. Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA;
7. Department of Medicine, NYU Grossman School of Medicine, New York, New York, USA;
8. Division of Gastroenterology and Hepatology, NYU Grossman School of Medicine, New York, New York, USA;
9. Department of Internal Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA;
10. University of Colorado School of Medicine, Aurora, Colorado, USA;
11. Division of Gastroenterology and Hepatology, University of North Carolina, Chapel Hill, North Carolina, USA;
12. Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.