1. Department of Internal Medicine, Soonchunhyang University College of Medicine, Bucheon, Korea.
2. Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea.
3. Department of Internal Medicine, Keimyung University College of Medicine, Daegu, Korea.
4. Department of Internal Medicine, Ajou University Hospital, Ajou University College of Medicine, Suwon, Korea.
5. Department of Internal Medicine, Kyung Hee University College of Medicine, Seoul, Korea.
6. Department of Internal Medicine, Sungkyunkwan University College of Medicine, Seoul, Korea.
7. Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
8. Department of Internal Medicine, Hanyang University Seoul Hospital, Hanyang University College of Medicine, Seoul, Korea.
9. Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
10. Department of Internal Medicine, Inje University College of Medicine, Busan, Korea.
11. Department of Internal Medicine, Pusan National University College of Medicine, Busan, Korea.
12. Department of Internal Medicine, Gachon University of Medicine and Science, Incheon, Korea.
13. Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
14. Department of Internal Medicine, Kyungpook National University College of Medicine, Daegu, Korea.
15. Department of Radiology, Soonchunhyang University College of Medicine, Bucheon, Korea.