1. Department of Internal Medicine and Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Korea.
2. Korean Portal Hypertension Study Group, Korea.
3. Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
4. Department of Internal Medicine, Kyungpook National University College of Medicine, Daegu, Korea.
5. Department of Internal Medicine, Inha University College of Medicine, Incheon, Korea.
6. Department of Internal Medicine, Ulsan University College of Medicine, Gangneung, Korea.
7. Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea.
8. Department of Internal Medicine, Ulsan University College of Medicine, Seoul, Korea.
9. Department of Internal Medicine, Gyeongsang National University College of Medicine, Jinju, Korea.
10. Department of Internal Medicine, Konyang University College of Medicine, Daejeon, Korea.
11. Department of Internal Medicine, Inje University College of Medicine, Busan, Korea.
12. Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea.
13. Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea.
14. Department of Internal Medicine, Wonkwang University College of Medicine, Iksan, Korea.
15. Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea.
16. Department of Internal Medicine, Keimyung University College of Medicine, Daegu, Korea.
17. Department of Internal Medicine, Inje University College of Medicine, Goyang, Korea.
18. Department of Internal Medicine, Soonchunhyang University Hospital Bucheon, Soonchunhyang University College of Medicine, Bucheon, Korea.
19. Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea.
20. Department of Internal Medicine, Catholic University of Daegu College of Medicine, Daegu, Korea.
21. Department of Internal Medicine, Soonchunhyang University Hospital Seoul, Soonchunhyang University College of Medicine, Seoul, Korea.
22. Department of Internal Medicine, Kyung Hee University College of Medicine, Seoul, Korea.
23. Department of Internal Medicine, Sungkyunkwan University College of Medicine, Seoul, Korea.
24. Department of Internal Medicine, Dongguk University College of Medicine, Goyang, Korea.
25. Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.