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Open-Access Journal
Frontier
John Gubatan, Derek R Holman, Christopher J Puntasecca, Danielle Polevoi, Samuel JS Rubin, Stephan Rogalla 
World J Gastroenterol 27(43):7402-7422. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7402
Rajiv M Mehta, Stephen J Pandol, Prachi R Joshi 
World J Gastroenterol 27(43):7423-7432. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7423
Opinion Review
Carlo Romano Settanni, Gianluca Ianiro, Francesca Romana Ponziani, Stefano Bibbò, Jonathan Philip Segal, Giovanni Cammarota, Antonio Gasbarrini 
World J Gastroenterol 27(43):7433-7445. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7433
Review
Maria Adriana Neag, Andrei Otto Mitre, Adrian Catinean, Anca Dana Buzoianu 
World J Gastroenterol 27(43):7446-7461. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7446
Mina S Makary, Stuart Ramsell, Eric Miller, Eliza W Beal, Joshua D Dowell 
World J Gastroenterol 27(43):7462-7479. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7462
Minireviews
Hiromitsu Hayashi, Norio Uemura, Kazuki Matsumura, Liu Zhao, Hiroki Sato, Yuta Shiraishi, Yo-ichi Yamashita, Hideo Baba 
World J Gastroenterol 27(43):7480-7496. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7480
Basic Study
Jun Wu, Xiao-Hui Yuan, Wen Jiang, Yi-Chen Lu, Qi-Lin Huang, Yi Yang, Hua-Ji Qie, Jiang-Tao Liu, Hong-Yu Sun, Li-Jun Tang 
World J Gastroenterol 27(43):7530-7545. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7530
Prospective Study
Marianne Anastasia De Roza, Mehul Lamba, George Boon-Bee Goh, Johnathan Huey-Ming Lum, Mark Chang-Chuen Cheah, Jing Hieng Jeffrey Ngu 
World J Gastroenterol 27(43):7563-7571. Published online Nov 21, 2021. doi: 10.3748/wjg.v27.i43.7563
Systematic Reviews
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