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Open-Access Journal
Minireviews
Retrospective Study
Shou-Jia Hu, Xue-Ke Zhao, Xin Song, Ling-Ling Lei, Wen-Li Han, Rui-Hua Xu, Ran Wang, Fu-You Zhou, Liang Wang, Li-Dong Wang 
World J Gastroenterol 27(4):321-335. Published online Jan 28, 2021. doi: 10.3748/wjg.v27.i4.321
Ming-Fang Wang, Bo Wan, Yin-Lian Wu, Jiao-Feng Huang, Yue-Yong Zhu, You-Bing Li 
World J Gastroenterol 27(4):336-344. Published online Jan 28, 2021. doi: 10.3748/wjg.v27.i4.336
Clinical Trials Study
Bo Qi, Xiao-Qiang Wang, Shu-Ting Pan, Pei-Ying Li, Ling-Ke Chen, Qiang Xia, Li-Qun Yang, Wei-Feng Yu 
World J Gastroenterol 27(4):345-357. Published online Jan 28, 2021. doi: 10.3748/wjg.v27.i4.345
Prospective Study
Yan-Yan Lin, Yu-Dong Wang, Ping Yue, Xian-Zhuo Zhang, Joseph W Leung, Pan-Pan Jiao, Man Yang, Hai-Ping Wang, Bing Bai, Ying Liu, Jin-Duo Zhang, Hong-Bo Chen, Wen-Bo Meng, Xun Li 
World J Gastroenterol 27(4):358-370. Published online Jan 28, 2021. doi: 10.3748/wjg.v27.i4.358
Case Report
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