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Open-Access Journal
Review
Takumi Onoyama, Hiroki Koda, Wataru Hamamoto, Shiho Kawahara, Yuri Sakamoto, Taro Yamashita, Hiroki Kurumi, Soichiro Kawata, Yohei Takeda, Kazuya Matsumoto, Hajime Isomoto 
World J Gastroenterol 28(19):2034-2056. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2034
Minireviews
Deepak Toor, Jonathan M Loree, Zu-Hua Gao, Gang Wang, Chen Zhou 
World J Gastroenterol 28(19):2076-2087. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2076
Yue Chen, Wen-Kang Gao, Yan-Yun Shu, Jin Ye 
World J Gastroenterol 28(19):2088-2099. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2088
Basic Study
Hiroki Bochimoto, Yo Ishihara, Nur Khatijah Mohd Zin, Hiroyoshi Iwata, Daisuke Kondoh, Hiromichi Obara, Naoto Matsuno 
World J Gastroenterol 28(19):2100-2111. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2100
Xian-Wen Guo, Yun-Xiao Liang, Peng-Yu Huang, Lie-Xin Liang, Yi-Qing Zeng, Zhen Ding 
World J Gastroenterol 28(19):2112-2122. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2112
Retrospective Cohort Study
Yun-Long Li, Ding-Ding Zhang, Yang-Yang Xiong, Rui-Feng Wang, Xiao-Mao Gao, Hui Gong, Shi-Cheng Zheng, Dong Wu 
World J Gastroenterol 28(19):2123-2136. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2123
Prospective Study
Mahsa Taghiakbari, Celia Hammar, Mira Frenn, Roupen Djinbachian, Heiko Pohl, Erik Deslandres, Simon Bouchard, Mickael Bouin, Daniel von Renteln 
World J Gastroenterol 28(19):2137-2147. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2137
Letter to the Editor
Jan Dimberg, Levar Shamoun, Kalle Landerholm, Dick Wågsäter 
World J Gastroenterol 28(19):2148-2151. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2148
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