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Open-Access Journal
Review
Riccardo Inchingolo, Alessandro Posa, Martin Mariappan, Tiago Kojun Tibana, Thiago Franchi Nunes, Stavros Spiliopoulos, Elias Brountzos 
World J Gastroenterol 26(34):5060-5073. Published online Sep 14, 2020. doi: 10.3748/wjg.v26.i34.5060
Minireviews
Basic Study
David Fernández-Ramos, Fernando Lopitz-Otsoa, Laura Delacruz-Villar, Jon Bilbao, Martina Pagano, Laura Mosca, Maider Bizkarguenaga, Marina Serrano-Macia, Mikel Azkargorta, Marta Iruarrizaga-Lejarreta, Jesús Sot, Darya Tsvirkun, Sebastiaan Martijn van Liempd, Felix M Goni, Cristina Alonso, María Luz Martínez-Chantar, Felix Elortza, Liat Hayardeny, Shelly C Lu, José M Mato 
World J Gastroenterol 26(34):5101-5117. Published online Sep 14, 2020. doi: 10.3748/wjg.v26.i34.5101
Retrospective Study
Nikolaos K Gatselis, Tamás Tornai, Zakera Shums, Kalliopi Zachou, Asterios Saitis, Stella Gabeta, Roger Albesa, Gary L Norman, Mária Papp, George N Dalekos 
World J Gastroenterol 26(34):5130-5145. Published online Sep 14, 2020. doi: 10.3748/wjg.v26.i34.5130
Osamu Toyoshima, Toshihiro Nishizawa, Shuntaro Yoshida, Yoshiki Sakaguchi, Yousuke Nakai, Hidenobu Watanabe, Hidekazu Suzuki, Chizu Tanikawa, Koichi Matsuda, Kazuhiko Koike 
World J Gastroenterol 26(34):5146-5155. Published online Sep 14, 2020. doi: 10.3748/wjg.v26.i34.5146
Observational Study
Elymir S Galvis-García, Sergio Sobrino-Cossío, Arturo Reding-Bernal, Yesica Contreras-Marín, Karina Solórzano-Acevedo, Patricia González-Zavala, Rosa M Quispe-Siccha 
World J Gastroenterol 26(34):5169-5180. Published online Sep 14, 2020. doi: 10.3748/wjg.v26.i34.5169
Systematic Reviews
Meta-Analysis
Syed M Saghir, Harmeet S Mashiana, Babu P Mohan, Banreet S Dhindsa, Amaninder Dhaliwal, Saurabh Chandan, Neil Bhogal, Ishfaq Bhat, Shailender Singh, Douglas G Adler 
World J Gastroenterol 26(34):5207-5219. Published online Sep 14, 2020. doi: 10.3748/wjg.v26.i34.5207
Letter To The Editor