Yim, Sun Young; Um, Soon Ho; Jung, Jin Young; Seo, Yeon Seok; Yim, Hyung Joon; Ryu, Ho Sang; Chun, Hoon Jai; Jeen, Yoon Tae; Kim, Chang Duck; Keum, Bora, et al.
ArticleIssue Date2014CitationJournal of Clinical Gastroenterology, v.48, no.2, pp 166 - 171PublisherLippincott Williams & Wilkins Ltd.