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Open-Access Journal
Opinion Review
Minireviews
Devarshi R Ardeshna, Troy Cao, Brandon Rodgers, Chidiebere Onongaya, Dan Jones, Wei Chen, Eugene J Koay, Somashekar G Krishna 
World J Gastroenterol 28(6):624-634. Published online Feb 14, 2022. doi: 10.3748/wjg.v28.i6.624
Basic Study
Edda Russo, Giulia Nannini, Gaetana Sterrantino, Seble Tekle Kiros, Vincenzo Di Pilato, Marco Coppi, Simone Baldi, Elena Niccolai, Federica Ricci, Matteo Ramazzotti, Marco Pallecchi, Filippo Lagi, Gian Maria Rossolini, Alessandro Bartoloni, Gianluca Bartolucci, Amedeo Amedei 
World J Gastroenterol 28(6):635-652. Published online Feb 14, 2022. doi: 10.3748/wjg.v28.i6.635
Case Control Study
Greta Varkalaite, Evelina Vaitkeviciute, Ruta Inciuraite, Violeta Salteniene, Simonas Juzenas, Vytenis Petkevicius, Rita Gudaityte, Antanas Mickevicius, Alexander Link, Limas Kupcinskas, Marcis Leja, Juozas Kupcinskas, Jurgita Skieceviciene 
World J Gastroenterol 28(6):653-664. Published online Feb 14, 2022. doi: 10.3748/wjg.v28.i6.653
Retrospective Study
Pinar Gokcen, Fatih Guzelbulut, Gupse Adali, Ayca Gokce Degirmenci Salturk, Oguzhan Ozturk, Ozgur Bahadir, Emine Kanatsiz, Mevlut Kiyak, Kamil Ozdil, Hamdi Levent Doganay 
World J Gastroenterol 28(6):665-674. Published online Feb 14, 2022. doi: 10.3748/wjg.v28.i6.665
Case Report
Kiyotaka Hosoda, Akira Shimizu, Koji Kubota, Tsuyoshi Notake, Hikaru Hayashi, Koya Yasukawa, Kentaro Umemura, Atsushi Kamachi, Takamune Goto, Hidenori Tomida, Shiori Yamazaki, Yuri Narusawa, Naoko Asano, Takeshi Uehara, Yuji Soejima 
World J Gastroenterol 28(6):675-682. Published online Feb 14, 2022. doi: 10.3748/wjg.v28.i6.675
Letter to the Editor