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Open-Access Journal
Opinion Review
Review
Cornelius J Fernandez, Mayuri Agarwal, Biju Pottakkat, Nisha Nigil Haroon, Annu Susan George, Joseph M Pappachan 
World J Gastrointest Surg 13(3):231-255. Published online Mar 27, 2021. doi: 10.4240/wjgs.v13.i3.231
Retrospective Study
Wen-Chang Li, Jing-Kun Zhao, Wen-Qing Feng, Yi-Ming Miao, Zi-Feng Xu, Zhuo-Qing Xu, Han Gao, Jing Sun, Min-Hua Zheng, Ya-Ping Zong, Ai-Guo Lu 
World J Gastrointest Surg 13(3):267-278. Published online Mar 27, 2021. doi: 10.4240/wjgs.v13.i3.267
Case Report
Michel Ribeiro Fernandes, Caroline Lorenzoni Almeida Ghezzi, Tomaz JM Grezzana-Filho, Flávia Heinz Feier, Ian Leipnitz, Aljamir Duarte Chedid, Carlos Thadeu Schmidt Cerski, Marcio Fernandes Chedid, Cléber Rosito Pinto Kruel 
World J Gastrointest Surg 13(3):315-322. Published online Mar 27, 2021. doi: 10.4240/wjgs.v13.i3.315