1Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
2Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
3Department of Gastroenterology, Ajou University School of Medicine, Suwon, Korea.
4Division of Hepatology, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
5Department of Internal Medicine, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, Korea.
6Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
7Department of Internal Medicine, Institute of Gastroenterology, CHA Bundang Hospital, CHA University, Seongnam, Korea.
8Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
9Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Korea.
10Division of Hepatology, Department of Internal Medicine, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.
11Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
12VUNO Inc., Seoul, Korea.
13Department of Internal Medicine, Chung-Ang University Hospital, Seoul, Korea.