Byeon, Jeong-Sik; Kim, Joo Sung; Lee, Chang Kyun; Park, Jae Myung; Chang, Dong Kyung; Kim, Young Bae; Kim, Yong Sik; Lee, Yong Chan; Jee, Sam-Ryong; Choi, Kyu Yong
ArticleIssue Date2008CitationDIGESTIVE ENDOSCOPY, v.20, no.2, pp.61 - 66PublisherWILEY