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Open-Access Journal
Editorial
Giuseppe Brisinda, Gaia Altieri, Neill James Adams, Giuseppe Tropeano, Gilda Pepe, Valeria Fico, Maria Michela Chiarello 
World J Gastroenterol 28(7):693-703. Published online Feb 21, 2022. doi: 10.3748/wjg.v28.i7.693
Minireviews
Retrospective Study
Tian Pu, Jiang-Ming Chen, Zi-Han Li, Dong Jiang, Qi Guo, Ang-Qing Li, Ming Cai, Zi-Xiang Chen, Kun Xie, Fu-Bao Liu, Xiao-Ping Geng, Zheng Lu, Hui Hou, Cheng Wang, Yi-Jun Zhao 
World J Gastroenterol 28(7):715-731. Published online Feb 21, 2022. doi: 10.3748/wjg.v28.i7.715
Observational Study
Systematic Reviews
Tai Ermongkonchai, Richard Khor, Vijayaragavan Muralidharan, Niall Tebbutt, Kelvin Lim, Numan Kutaiba, Sweet Ping Ng 
World J Gastroenterol 28(7):745-754. Published online Feb 21, 2022. doi: 10.3748/wjg.v28.i7.745
Case Report
Julien Catherine, Hazim Kadhim, Frédéric Lambot, Claire Liefferinckx, Virginie Meurant, Lukas Otero Sanchez 
World J Gastroenterol 28(7):755-762. Published online Feb 21, 2022. doi: 10.3748/wjg.v28.i7.755
Letter to the Editor
Lorenzo Dioscoridi, Massimiliano Mutignani 
World J Gastroenterol 28(7):763-765. Published online Feb 21, 2022. doi: 10.3748/wjg.v28.i7.763
Stanislav Sitkin, Leonid Lazebnik, Elena Avalueva, Svetlana Kononova, Timur Vakhitov 
World J Gastroenterol 28(7):766-774. Published online Feb 21, 2022. doi: 10.3748/wjg.v28.i7.766
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