1. Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea;
2. Medical Data Analytics Centre (MDAC), Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China;
3. Division of Hepatogastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan;
4. Department of Anesthesiology, Seoul National University College of Medicine, Seoul, Republic of Korea;
5. Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea;
6. Department of Internal Medicine and Yonsei Liver Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea;
7. Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea;
8. Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea;
9. Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Republic of Korea;
10. Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea;
11. Center for Digestive Medicine, Department of Internal Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan;
12. Department of Gastroenterology and Hepatology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Republic of Korea;
13. Division of Hepatogastroenterology, Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan;
14. Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea;
15. Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Republic of Korea;
16. Department of Internal Medicine, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea;
17. Department of Internal Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea;
18. Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea;
19. Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University College of Medicine, Seoul, Republic of Korea;
20. Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Republic of Korea;
21. Department of Internal Medicine, Soonchunhyang University College of Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea;
22. Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea;
23. Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea;
24. Medical Research Collaboration Center, Seoul National University Hospital, Seoul, Republic of Korea.