Authors: Won Jai Jung; Young Mok Park; Joo Han Song; Kyung Soo Chung; Song Yee Kim; Eun Young Kim; Ji Ye Jung; Moo Suk Park; Young Sam Kim; Se Kyu Kim; Joon Chang; Sung Hoon Noh; Ji Yeong An; Young Ae Kang Journal: World J Gastroenterol Date: 2016-02-28 Impact factor: 5.742