Cha, Bong Ki; Jung, Seung Mun; Choi, Chang Hwan; Song, In-Do; Lee, Hyun Woong; Kim, Hyung Joon; Do, Jae Hyuk; Chang, Sae Kyung; Kim, Kijeong; Chung, Won-Seok, et al.
ArticleIssue Date2012CitationJOURNAL OF CLINICAL GASTROENTEROLOGY, v.46, no.3, pp 220 - 227PublisherLIPPINCOTT WILLIAMS & WILKINS