[1
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Eun Soo Kim, Ho Young Lee, Yoo Jin Lee, Bo Ram Min, Jae Hyuk Choi, Kyung Sik Park,
Kwang Bum Cho, Byoung Kuk Jang, Woo Jin Chung, Jae Seok Hwang, Division of Gastroenterology
and Hepatology, Department of Internal Medicine, Keimyung University School of Medicine,
Daegu 700-712, South Korea.