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Review
Minireviews
Basic Study
Flavia Maria Silva-Veiga, Carolline Santos Miranda, Isabela Macedo Lopes Vasques-Monteiro, Henrique Souza-Tavares, Fabiane Ferreira Martins, Julio Beltrame Daleprane, Vanessa Souza-Mello 
World J Gastroenterol 28(17):1814-1829. Published online May 7, 2022. doi: 10.3748/wjg.v28.i17.1814
Retrospective Cohort Study
James Guoxian Huang, Yoko Kin Yoke Wong, Kee Seang Chew, Pornthep Tanpowpong, Karen Sophia Calixto Mercado, Almida Reodica, Shaman Rajindrajith, Kai-Chi Chang, Yen-Hsuan Ni, Suporn Treepongkaruna, Way-Seah Lee, Marion Margaret Aw 
World J Gastroenterol 28(17):1830-1844. Published online May 7, 2022. doi: 10.3748/wjg.v28.i17.1830
Retrospective Study
Mitsuru Sugimoto, Tadayuki Takagi, Rei Suzuki, Naoki Konno, Hiroyuki Asama, Yuki Sato, Hiroki Irie, Yoshinori Okubo, Jun Nakamura, Mika Takasumi, Minami Hashimoto, Tsunetaka Kato, Ryoichiro Kobashi, Takumi Yanagita, Takuto Hikichi, Hiromasa Ohira 
World J Gastroenterol 28(17):1860-1870. Published online May 7, 2022. doi: 10.3748/wjg.v28.i17.1860
Letter to the Editor