Chung, Ii-Kwun, Lee, Jun Haeng, Lee, Suck-Ho, Kim, Sun-Joo, Cho, Joo Young, Cho, Won Young, Hwangbo, Young, Keum, Bo Ra, Park, Jong Jae, Chun, Hoon-Jai, et al.
ArticleIssue Date2009CitationGASTROINTESTINAL ENDOSCOPY, v.69, no.7, pp.1228 - 1235PublisherMOSBY-ELSEVIER