1. Division of Gastroenterology and Hepatology Stanford University School of Medicine Stanford California USA
2. Department of Medicine Stanford University School of Medicine Stanford California USA
3. Division of Gastroenterology and Hepatology, Department of Internal Medicine Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center Seoul Korea
4. Division of Gastroenterology and Hepatology University of California San Francisco – UCSF Health San Francisco California USA
5. Radcliffe Department of Medicine University of Oxford Oxford United Kingdom
6. Department of Medicine, Center for Liver Diseases Inova Fairfax Hospital Falls Church Virginia USA