1. Division of Gastroenterology and Hepatology Stanford University Medical Center Palo Alto California USA
2. Harvard Medical School Boston Massachusetts USA
3. Department of Medicine, Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
4. Division of Gastroenterology and Hepatology, Department of Medicine National University Hospital Singapore Singapore
5. Larner College of Medicine at the University of Vermont Burlington Vermont USA
6. Stanford University School of Medicine Stanford California USA
7. Department of General Internal Medicine Kyushu University Hospital Fukuoka Japan
8. Department of Internal Medicine National University Health System Singapore Singapore
9. Lane Medical Library Stanford University School of Medicine Palo Alto California USA
10. Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
11. Department of Hepatology, Graduate School of Medicine Osaka Metropolitan University Osaka Japan
12. Division of Gastroenterology and Hepatology Veterans Affairs Palo Alto Health Care System Palo Alto California USA
13. Department of Epidemiology and Population Health Stanford University School of Medicine Palo Alto California USA