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Open-Access Journal
Opinion Review
Stavros Spiliopoulos, Lazaros Reppas, Dimitrios Filippiadis, Antonella Delvecchio, Maria Conticchio, Riccardo Memeo, Riccardo Inchingolo 
World J Gastroenterol 29(2):223-231. Published online Jan 14, 2023. doi: 10.3748/wjg.v29.i2.223
Review
Ioanna Papagiouvanni, Serafeim-Chrysovalantis Kotoulas, Athanasia Pataka, Dionisios G Spyratos, Konstantinos Porpodis, Afroditi K Boutou, Georgios Papagiouvannis, Ioanna Grigoriou, Christos Vettas, Ioannis Goulis 
World J Gastroenterol 29(2):257-271. Published online Jan 14, 2023. doi: 10.3748/wjg.v29.i2.257
Xin-Yu Liu, Hao Tang, Qing-Yang Zhou, Yan-Lin Zeng, Dan Chen, Hui Xu, Yue Li, Bei Tan, Jia-Ming Qian 
World J Gastroenterol 29(2):272-285. Published online Jan 14, 2023. doi: 10.3748/wjg.v29.i2.272
Titilayo Omolara Johnson, Augustina Oduje Akinsanmi, Stephen Adakole Ejembi, Olugbenga Eyitayo Adeyemi, Jane-Rose Oche, Grace Inioluwa Johnson, Abayomi Emmanuel Adegboyega 
World J Gastroenterol 29(2):310-331. Published online Jan 14, 2023. doi: 10.3748/wjg.v29.i2.310
Minireviews
Cristiane Valle Tovo, Angelo Zambam de Mattos, Gabriela Perdomo Coral, Giovana D P Sartori, Livia Villela Nogueira, Gustavo Tovo Both, Cristiane A Villela-Nogueira, Angelo A de Mattos 
World J Gastroenterol 29(2):343-356. Published online Jan 14, 2023. doi: 10.3748/wjg.v29.i2.343
Observational Study
Systematic Reviews
Letter to the Editor