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Open-Access Journal
Review
Minireviews
Michail Galanopoulos, Filippos Gkeros, Aris Doukatas, Grigorios Karianakis, Christos Pontas, Nikolaos Tsoukalas, Nikos Viazis, Christos Liatsos, Gerassimos J Mantzaris 
World J Gastroenterol 26(31):4579-4588. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4579
Basic Study
Case Control Study
Peng-Cheng Zhou, Lun-Quan Sun, Li Shao, Lun-Zhao Yi, Ning Li, Xue-Gong Fan 
World J Gastroenterol 26(31):4607-4623. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4607
Retrospective Cohort Study
Shi-Wen Mei, Zheng Liu, Fang-Ze Wei, Jia-Nan Chen, Zhi-Jie Wang, Hai-Yu Shen, Juan Li, Fu-Qiang Zhao, Wei Pei, Zheng Wang, Xi-Shan Wang, Qian Liu 
World J Gastroenterol 26(31):4624-4638. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4624
Retrospective Study
Katarzyna Jakubowska, Mariusz Koda, Małgorzata Grudzińska, Luiza Kańczuga-Koda, Waldemar Famulski 
World J Gastroenterol 26(31):4639-4655. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4639
Huai-Liang Li, Lin-Hua Wang, Yi-Lin Hu, Ying Feng, Xiao-Hong Li, Yi-Fei Liu, Peng Li, Qin-Sheng Mao, Wan-Jiang Xue 
World J Gastroenterol 26(31):4656-4668. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4656
Wei Zhou, Chang-Zheng Dong, Yi-Feng Zang, Ying Xue, Xing-Guo Zhou, Yu Wang, Yin-Lu Ding 
World J Gastroenterol 26(31):4669-4679. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4669
Hu Zhang, Yu-Sheng Liao, Jing Gong, Jing Liu, Heng Zhang 
World J Gastroenterol 26(31):4694-4702. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4694
Observational Study
Hong Xue, Han Li, Lin-Ling Ju, Xu-Dong Han, Tiao-Chun Cheng, Xi Luo, Lin Chen, Jian-Guo Shao, Yong-Jun She, Zhao-Lian Bian 
World J Gastroenterol 26(31):4703-4717. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4703
Systematic Reviews
René Fahrner, Sandra GC Dennler, Daniel Inderbitzin 
World J Gastroenterol 26(31):4718-4728. Published online Aug 21, 2020. doi: 10.3748/wjg.v26.i31.4718
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