[1] Korea Univ, Coll Med, Seoul, South Korea
[2] Univ Wonju, Coll Med, Wonju, South Korea
[3] Soonchunhyang Univ, Coll Med, Cheonan, South Korea
[4] Kyungpook Natl Univ, Sch Med, Daegu, South Korea
[5] Sungkyunkwan Univ, Coll Med, Kangbuk Samsung Hosp, Seoul, South Korea
[6] Yonsei Univ, Coll Med, Seoul, South Korea
[7] Yonsei Univ, Wonju Coll Med, Wonju, South Korea
[8] Liver Cirrhosis Clin Res Ctr, Seoul, South Korea