Affiliation: | 1. Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, , Seoul, Korea;2. Department of Internal Medicine, Hanmaeum Hospital, , Jeju‐si, Korea;3. Department of Internal Medicine, Seoul National University Bundang Hospital, , Seongnam‐si, Korea;4. Department of Internal Medicine, Seoul National University Hospital, , Seoul, Korea;5. Department of Internal Medicine, Halla Hospital, , Jeju‐si, Korea |