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Open-Access Journal
Review
Minireviews
Barbara Uhl, Katharina T Prochazka, Karoline Fechter, Katrin Pansy, Hildegard T Greinix, Peter Neumeister, Alexander JA Deutsch 
World J Gastrointest Oncol 14(1):153-162. Published online Jan 15, 2022. doi: 10.4251/wjgo.v14.i1.153
Nikolaos Charalampakis, Sergios Tsakatikas, Dimitrios Schizas, Stylianos Kykalos, Maria Tolia, Rodanthi Fioretzaki, Georgios Papageorgiou, Ioannis Katsaros, Ahmed Adel Fouad Abdelhakeem, Matheus Sewastjanow-Silva, Jane E Rogers, Jaffer A Ajani 
World J Gastrointest Oncol 14(1):181-202. Published online Jan 15, 2022. doi: 10.4251/wjgo.v14.i1.181
Basic Study
Retrospective Study
Hai-Ling Wang, Xue-Ke Zhao, Fu-You Zhou, Xin Song, Liu-Yu Li, Gai-Rong Huang, Qi-De Bao, Ling-Ling Lei, Hai-Jun Yang, Li Li, Rui-Hua Xu, Ai-Li Li, Xian-Zeng Wang, Wen-Li Han, Jing-Li Ren, Li-Dong Wang 
World J Gastrointest Oncol 14(1):265-277. Published online Jan 15, 2022. doi: 10.4251/wjgo.v14.i1.265
Observational Study
Prospective Study
Ramón Cantero-Cid, Karla Marina Montalbán-Hernández, Jenny Guevara, Alejandro Pascual-Iglesias, Elisa Pulido, José Carlos Casalvilla, Cristóbal Marcano, Cristina Barragán Serrano, Jaime Valentín, Gloria Cristina Bonel-Pérez, José Avendaño-Ortiz, Verónica Terrón, Roberto Lozano-Rodríguez, Alejandro Martín-Quirós, Elvira Marín, Eva Pena, Laura Guerra-Pastrián, Eduardo López-Collazo, Luis Augusto Aguirre 
World J Gastrointest Oncol 14(1):295-318. Published online Jan 15, 2022. doi: 10.4251/wjgo.v14.i1.295
Randomized Controlled Trial
Systematic Reviews
Meta-Analysis
Letter to the Editor
Si-Qin Wang, Chu-Xing Chai, Bi-Rong Wang, Feng Zhu, Dan Shang, Min Li 
World J Gastrointest Oncol 14(1):362-365. Published online Jan 15, 2022. doi: 10.4251/wjgo.v14.i1.362