1. Department of Gastroenterology University of Ulsan College of Medicine Seoul South Korea
2. Department of Radiology Asan Medical Center University of Ulsan College of Medicine Seoul South Korea
3. Department of Internal Medicine Myongji Saint Mary’s Hospital Seoul South Korea
4. Department of Gastroenterology and Hepatology Hanyang University of Medicine Guri South Korea
5. Department of Pathology Asan Medical Center University of Ulsan College of Medicine Seoul South Korea
6. Department of Surgery Asan Medical Center University of Ulsan College of Medicine Seoul South Korea
7. Asan Liver Center Asan Medical Center University of Ulsan College of Medicine Seoul South Korea