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Open-Access Journal
Editorial
Opinion Review
Sara Cherri, Michela Libertini, Alberto Zaniboni 
World J Gastrointest Oncol 13(11):1551-1560. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1551
Review
Aurelien Mammes, Jennifer Pasquier, Olivier Mammes, Marc Conti, Richard Douard, Sylvain Loric 
World J Gastrointest Oncol 13(11):1561-1598. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1561
Shan Yao, Zheng Ye, Yi Wei, Han-Yu Jiang, Bin Song 
World J Gastrointest Oncol 13(11):1599-1615. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1599
Ilenia Bartolini, Matteo Risaliti, Rosaria Tucci, Paolo Muiesan, Maria Novella Ringressi, Antonio Taddei, Amedeo Amedei 
World J Gastrointest Oncol 13(11):1616-1631. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1616
Katharina Joechle, Jessica Guenzle, Claus Hellerbrand, Pavel Strnad, Thorsten Cramer, Ulf Peter Neumann, Sven Arke Lang 
World J Gastrointest Oncol 13(11):1632-1647. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1632
Minireviews
Yang Yang, Zi-Jian Zhang, Yu Wen, Li Xiong, Yun-Peng Huang, Yong-Xiang Wang, Kai Liu 
World J Gastrointest Oncol 13(11):1668-1679. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1668
Palittiya Sintusek, Teerasak Phewplung, Anapat Sanpavat, Yong Poovorawan 
World J Gastrointest Oncol 13(11):1680-1695. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1680
Riccardo Inchingolo, Fabrizio Acquafredda, Valentina Ferraro, Letizia Laera, Gianmarco Surico, Alessia Surgo, Alba Fiorentino, Stefania Marini, Nicola de'Angelis, Riccardo Memeo, Stavros Spiliopoulos 
World J Gastrointest Oncol 13(11):1696-1708. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1696
Basic Study
Bu-Wei Teng, Kun-Dong Zhang, Yu-Han Yang, Zeng-Ya Guo, Wei-Wei Chen, Zheng-Jun Qiu 
World J Gastrointest Oncol 13(11):1709-1724. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1709
Zhe Deng, Yong-Jie Teng, Qing Zhou, Zhao-Guang Ouyang, Yu-Xing Hu, Hong-Ping Long, Mei-Jie Hu, Si Mei, Feng-Xia Lin, Xin-Jun Dai, Bo-Yu Zhang, Ting Feng, Xue-Fei Tian 
World J Gastrointest Oncol 13(11):1725-1740. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1725
Wan-Qun Chen, Feng-Liang Tian, Jin-Wei Zhang, Xiao-Jun Yang, Yan-Ping Li 
World J Gastrointest Oncol 13(11):1741-1754. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1741
Case Control Study
Noyko Stanilov, Antonia Grigorova, Tsvetelina Velikova, Spaska Angelova Stanilova 
World J Gastrointest Oncol 13(11):1766-1780. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1766
Clinical Trials Study
Systematic Reviews
Nahed A Makhlouf, Muhammad Abdel-Gawad, Aya M Mahros, Sameh A Lashen, Mariam Zaghloul, Ahmed Eliwa, Eman E Elshemy, Zainab Ali-Eldin, Doaa Abdeltawab, Fathiya El-Raey, Dalia Omran, Marwa Khalaf, Nancy Fanous, Ahmed Shawkat Abdelmohsen, Ahmed Abu-Elfatth, Mohamed Abdelghani, Mahmoud Farouk, Mohamed Abdelaziz, Mohamed Alboraie 
World J Gastrointest Oncol 13(11):1791-1798. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1791
Isabelle Uhe, Monika Elisabeth Hagen, Frédéric Ris, Jeremy Meyer, Christian Toso, Jonathan Douissard 
World J Gastrointest Oncol 13(11):1799-1812. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1799
Faiza Ahmed, Jennifer Onwumeh-Okwundu, Zeynep Yukselen, Maria-Kassandra Endaya Coronel, Madiha Zaidi, Prathima Guntipalli, Vamsi Garimella, Sravya Gudapati, Marc Darlene Mezidor, Kim Andrews, Mohamad Mouchli, Endrit Shahini 
World J Gastrointest Oncol 13(11):1813-1832. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1813
Meta-Analysis
Letter to the Editor
S Pilar Zamora-León 
World J Gastrointest Oncol 13(11):1847-1849. Published online Nov 15, 2021. doi: 10.4251/wjgo.v13.i11.1847
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