Um, SH, Ryu, HS, Park, MR, Lee, JW, Lee, SJ, Kim, KH, Park, HJ, Jeen, YT, Chun, HJ, Song, CW, et al.
ConferenceIssue Date1998CitationThe American Gastroenterological Association and Digestive Disease Week, pp.A1356PublisherW B SAUNDERS COPlaceUS; New Orleans, Louisiana