Authors: Chang Seok Bang; Yong Seop Lee; Yun Hyeong Lee; Hotaik Sung; Hong Jun Park; Hyun Soo Kim; Jin Bong Kim; Gwang Ho Baik; Yeon Soo Kim; Jai Hoon Yoon; Dong Joon Kim; Ki Tae Suk Journal: World J Gastroenterol Date: 2013-11-21 Impact factor: 5.742