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Open-Access Journal
Review
Diego García-Compeán, Emanuela Orsi, Ramesh Kumar, Felix Gundling, Tsutomu Nishida, Jesús Zacarías Villarreal-Pérez, Ángel N Del Cueto-Aguilera, José A González-González, Giuseppe Pugliese 
World J Gastroenterol 28(8):775-793. Published online Feb 28, 2022. doi: 10.3748/wjg.v28.i8.775
Minireviews
Basic Study
Retrospective Cohort Study
Jing-Quan Su, Pin-Yu Lai, Pei-Hsuan Hu, Je-Ming Hu, Pi-Kai Chang, Chao-Yang Chen, Jia-Jheng Wu, Yu-Jyun Lin, Chien-An Sun, Tsan Yang, Chih-Hsiung Hsu, Hua-Ching Lin, Yu-Ching Chou 
World J Gastroenterol 28(8):825-839. Published online Feb 28, 2022. doi: 10.3748/wjg.v28.i8.825
Retrospective Study
Case Report
Eiji Yoshida, Yasutoshi Kimura, Takuro Kyuno, Ryoko Kawagishi, Kei Sato, Tsuyoshi Kono, Takehiro Chiba, Toshimoto Kimura, Hitoshi Yonezawa, Osamu Funato, Makoto Kobayashi, Kenji Murakami, Akinori Takagane, Ichiro Takemasa 
World J Gastroenterol 28(8):868-877. Published online Feb 28, 2022. doi: 10.3748/wjg.v28.i8.868
Letter to the Editor