1. The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea.
2. Division of Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea.
3. Division of Hepatology, Department of Internal Medicine, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea.
4. Division of Hepatology, Department of Internal medicine, College of Medicine, Eunpyeong St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea.