Choi, Nam-Kyong; Lee, Joongyub; Chang, Yoosoo; Kim, Ye-Jee; Kim, Ju-Young; Song, Hong Ji; Shin, Ju-Young; Jung, Sun-Young; Choi, Yukyong; Lee, Jin-Ho, et al.
ArticleIssue Date2014CitationENDOSCOPY, v.46, no.6, pp 465 - 470PublisherGEORG THIEME VERLAG KG