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Editorial
Shunji Fujimori 
World J Gastroenterol 27(47):8040-8046. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8040
Frontier
Giuseppe Privitera, Daniela Pugliese, Loris Riccardo Lopetuso, Franco Scaldaferri, Alfredo Papa, Gian Lodovico Rapaccini, Antonio Gasbarrini, Alessandro Armuzzi 
World J Gastroenterol 27(47):8047-8057. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8047
Christof Mittermair, Helmut G Weiss 
World J Gastroenterol 27(47):8058-8068. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8058
Expert Consensus
Hai-Tao Zhao, Jian-Qiang Cai 
World J Gastroenterol 27(47):8069-8080. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8069
Review
Rocío González Grande, Inmaculada Santaella Leiva, Susana López Ortega, Miguel Jiménez Pérez 
World J Gastroenterol 27(47):8081-8102. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8081
Minireviews
Mahsa Taghiakbari, Yuichi Mori, Daniel von Renteln 
World J Gastroenterol 27(47):8103-8122. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8103
Jun-Xi Xu, De-Hao Wu, Li-Wei Ying, Han-Guang Hu 
World J Gastroenterol 27(47):8123-8137. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8123
Basic Study
Kunal Kapoor, Nour Eissa, Diane Tshikudi, Charles N Bernstein, Jean-Eric Ghia 
World J Gastroenterol 27(47):8138-8155. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8138
Jia-Yi Liu, Zhu-Yuan Ding, Zi-Yi Zhou, Sheng-Zhen Dai, Jie Zhang, Hao Li, Qiu Du, Ye-Yu Cai, Quan-Liang Shang, Yong-Heng Luo, En-Hua Xiao 
World J Gastroenterol 27(47):8156-8165. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8156
Retrospective Study
Ajalaya Teyateeti, Armeen Mahvash, James Long, Mohamed Abdelsalam, Rony Avritscher, Ahmed Kaseb, Bruno Odisio, Gregory Ravizzini, Devaki Surasi, Achiraya Teyateeti, Homer Macapinlac, Srinivas Cheenu Kappadath 
World J Gastroenterol 27(47):8166-8181. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8166
Observational Study
Masashi Saito, Takeshi Yamamura, Masanao Nakamura, Keiko Maeda, Tsunaki Sawada, Eri Ishikawa, Yasuyuki Mizutani, Takuya Ishikawa, Naomi Kakushima, Kazuhiro Furukawa, Eizaburo Ohno, Hiroki Kawashima, Masatoshi Ishigami, Mitsuhiro Fujishiro 
World J Gastroenterol 27(47):8182-8193. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8182
Letter to the Editor
Yan-Dong Miao, Jiang-Tao Wang, Xiao-Long Tang, Deng-Hai Mi 
World J Gastroenterol 27(47):8194-8198. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8194
Yasir Waheed 
World J Gastroenterol 27(47):8199-8200. Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8199
Abstract (1324) | Core Tip (1240) | Full Article (HTML) (3910) | Full Article (PDF)-735K (529) | Audio-308K (16) | Received: 07/13/2021 | Revised: 08/24/2021 | Accepted: 12/08/2021 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Similar Articles (0) | Cite | (229) | (239) | | (0) | (0) | (1) | (8134) | (14) | Open
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