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Open-Access Journal
Retrospective Cohort Study
Chi-Chih Wang, Ming-Hseng Tseng, Sheng-Wen Wu, Tzu-Wei Yang, Hsuan-Yi Chen, Wen-Wei Sung, Chang-Cheng Su, Yao-Tung Wang, Chun-Che Lin, Ming-Chang Tsai 
World J Gastrointest Oncol 12(12):1381-1393. Published online Dec 15, 2020. doi: 10.4251/wjgo.v12.i12.1381
Jie Ren, Ying-Mu Tong, Rui-Xia Cui, Zi Wang, Qing-Lin Li, Wei Liu, Kai Qu, Jing-Yao Zhang, Chang Liu, Yong Wan 
World J Gastrointest Oncol 12(12):1394-1406. Published online Dec 15, 2020. doi: 10.4251/wjgo.v12.i12.1394
Retrospective Study
Yuan-Liang Li, Xu-Dong Qiu, Jie Chen, Yu Zhang, Jie Li, Jian-Ming Xu, Chao Wang, Zhi-Rong Qi, Jie Luo, Huang-Ying Tan 
World J Gastrointest Oncol 12(12):1416-1427. Published online Dec 15, 2020. doi: 10.4251/wjgo.v12.i12.1416
Observational Study
Chun-Ming Huang, Ching-Wen Huang, Cheng-Jen Ma, Hsiang-Lin Tsai, Wei-Chih Su, Tsung-Kun Chang, Ming-Yii Huang, Jaw Yuan Wang 
World J Gastrointest Oncol 12(12):1428-1442. Published online Dec 15, 2020. doi: 10.4251/wjgo.v12.i12.1428
Meta-Analysis
Ling Tan, Zi-Lin Liu, Zhou Ma, Zhou He, Lin-Han Tang, Yi-Lei Liu, Jiang-Wei Xiao 
World J Gastrointest Oncol 12(12):1443-1455. Published online Dec 15, 2020. doi: 10.4251/wjgo.v12.i12.1443
Case Report
Mariacristina Di Marco, Riccardo Carloni, Stefania De Lorenzo, Cristina Mosconi, Andrea Palloni, Elisa Grassi, Daria Maria Filippini, Angela Dalia Ricci, Alessandro Rizzo, Alessandro Di Federico, Donatella Santini, Daniela Turchetti, Claudio Ricci, Carlo Ingaldi, Laura Alberici, Francesco Minni, Rita Golfieri, Giovanni Brandi, Riccardo Casadei 
World J Gastrointest Oncol 12(12):1456-1463. Published online Dec 15, 2020. doi: 10.4251/wjgo.v12.i12.1456
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