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Open-Access Journal
Opinion Review
Wataru Sano, Daizen Hirata, Akira Teramoto, Mineo Iwatate, Santa Hattori, Mikio Fujita, Yasushi Sano 
World J Gastroenterol 26(19):2276-2285. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2276
Jian Wu, Shu Song, Hong-Cui Cao, Lan-Juan Li 
World J Gastroenterol 26(19):2286-2293. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2286
Review
Zu-Yi Ma, Yuan-Feng Gong, Hong-Kai Zhuang, Zi-Xuan Zhou, Shan-Zhou Huang, Yi-Ping Zou, Bo-Wen Huang, Zhong-Hai Sun, Chuan-Zhao Zhang, Yun-Qiang Tang, Bao-Hua Hou 
World J Gastroenterol 26(19):2305-2322. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2305
Minireviews
Ming Han Cha, Miguel Regueiro, Dalbir S Sandhu 
World J Gastroenterol 26(19):2323-2332. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2323
Paolo Usai-Satta, Massimo Bellini, Olivia Morelli, Francesca Geri, Mariantonia Lai, Gabrio Bassotti 
World J Gastroenterol 26(19):2333-2348. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2333
Basic Study
Kun-Dong Zhang, Bin Hu, Gang Cen, Yu-Han Yang, Wei-Wei Chen, Zeng-Ya Guo, Xiao-Feng Wang, Qian Zhao, Zheng-Jun Qiu 
World J Gastroenterol 26(19):2349-2373. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2349
Clinical and Translational Research
Retrospective Study
Zheng-Yan Li, Xiao-Dong Wang, Mou Li, Xi-Jiao Liu, Zheng Ye, Bin Song, Fang Yuan, Yuan Yuan, Chun-Chao Xia, Xin Zhang, Qian Li 
World J Gastroenterol 26(19):2388-2402. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2388
Ping Yue, Ke-Xiang Zhu, Hai-Ping Wang, Wen-Bo Meng, Jian-Kang Liu, Lei Zhang, Xiao-Liang Zhu, Hui Zhang, Long Miao, Zheng-Feng Wang, Wen-Ce Zhou, Azumi Suzuki, Kiyohito Tanaka, Xun Li 
World J Gastroenterol 26(19):2403-2415. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2403
Observational Study
Panyavee Pitisuttithum, Wah-Kheong Chan, George Boon-Bee Goh, Jian-Gao Fan, Myeong Jun Song, Phunchai Charatcharoenwitthaya, Ajay Duseja, Yock-Young Dan, Kento Imajo, Atsushi Nakajima, Khek-Yu Ho, Khean-Lee Goh, Vincent Wai-Sun Wong, Sombat Treeprasertsuk 
World J Gastroenterol 26(19):2416-2426. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2416
Yong-He Chen, Jian Xiao, Xi-Jie Chen, Hua-She Wang, Dan Liu, Jun Xiang, Jun-Sheng Peng 
World J Gastroenterol 26(19):2427-2439. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2427
Systematic Reviews
Case Report
Sofie Hendriks, Mareille Maria Verseveld, Egbert Roeland Boevé, Robert Roomer 
World J Gastroenterol 26(19):2458-2463. Published online May 21, 2020. doi: 10.3748/wjg.v26.i19.2458
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