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Open-Access Journal
Opinion Review
Li-Wei Qiu, Yi-Fei Liu, Xiao-Qing Cao, Yan Wang, Xiao-Hong Cui, Xian Ye, Shuo-Wen Huang, Hong-Jun Xie, Hai-Jian Zhang 
World J Gastroenterol 26(18):2126-2137. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2126
Review
Chiara Becchetti, Melisa Dirchwolf, Vanessa Banz, Jean-François Dufour 
World J Gastroenterol 26(18):2138-2154. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2138
Chun-Lin Li, Wen-Jun Zhou, Guang Ji, Li Zhang 
World J Gastroenterol 26(18):2155-2165. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2155
Minireviews
Ilaria Lenci, Martina Milana, Giuseppe Grassi, Tommaso M Manzia, Carlo Gazia, Giuseppe Tisone, Roberta Angelico, Leonardo Baiocchi 
World J Gastroenterol 26(18):2166-2176. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2166
Qing-Song Xia, Fu-Er Lu, Fan Wu, Zhao-Yi Huang, Hui Dong, Li-Jun Xu, Jing Gong 
World J Gastroenterol 26(18):2177-2186. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2177
Xue-Yang Li, Cong He, Yin Zhu, Nong-Hua Lu 
World J Gastroenterol 26(18):2187-2193. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2187
Basic Study
Nagi Elleisy, Sarah Rohde, Astrid Huth, Nicole Gittel, Änne Glass, Steffen Möller, Georg Lamprecht, Holger Schäffler, Robert Jaster 
World J Gastroenterol 26(18):2194-2202. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2194
Feng-Zhi Xin, Ze-Hua Zhao, Rui-Nan Zhang, Qin Pan, Zi-Zhen Gong, Chao Sun, Jian-Gao Fan 
World J Gastroenterol 26(18):2203-2220. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2203
Retrospective Study
Anuj Bohra, Thomas Worland, Samuel Hui, Ryma Terbah, Ann Farrell, Marcus Robertson 
World J Gastroenterol 26(18):2221-2231. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2221
Amy Kim, Beom Su Kim, Jeong Hwan Yook, Byung Sik Kim 
World J Gastroenterol 26(18):2232-2246. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2232
Meta-Analysis
Case Report
Yuki Adachi, Hiromitsu Hayashi, Toshihiko Yusa, Toru Takematsu, Kazuki Matsumura, Takaaki Higashi, Kensuke Yamamura, Takanobu Yamao, Katsunori Imai, Yo−ichi Yamashita, Hideo Baba 
World J Gastroenterol 26(18):2268-2275. Published online May 14, 2020. doi: 10.3748/wjg.v26.i18.2268
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