1. Department of Internal Medicine, Hallym Medical Center, Hallym University College of Medicine, Chuncheon 24252, Republic of Korea
2. Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Republic of Korea
3. Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
4. Department of Internal Medicine, Hanyang University College of Medicine, Seoul 04763, Republic of Korea
5. Department of Internal Medicine, Korea University Medical Center, Seoul 02841, Republic of Korea
6. Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea
7. Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul 04401, Republic of Korea
8. Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Republic of Korea
9. Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon 22212, Republic of Korea
10. Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung 25440, Republic of Korea
11. Department of Internal Medicine, Daegu Catholic University School of Medicine, Daegu 42472, Republic of Korea
12. Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06531, Republic of Korea
13. Department of Internal Medicine, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
14. Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea
15. Department of Internal Medicine, National Medical Center, Seoul 04564, Republic of Korea
16. Department of Internal Medicine, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju 54896, Republic of Korea
17. Department of Internal Medicine, Medical Research Institute, Chungbuk National University College of Medicine, Cheongju 28644, Republic of Korea
18. Department of Internal Medicine, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
19. Department of Internal Medicine, Yeungnam University College of Medicine, Daegu 42415, Republic of Korea
20. Department of Internal Medicine, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
21. Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
22. Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul 07061, Republic of Korea