| Affiliation: | 1. Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea;2. Department of Radiology, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Republic of Korea;3. Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Republic of Korea;4. Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA;5. Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea |
