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Open-Access Journal
Review
Minireviews
Panagiotis Sarantis, Evangelos Koustas, Adriana Papadimitropoulou, Athanasios G Papavassiliou, Michalis V Karamouzis 
World J Gastrointest Oncol 12(2):173-181. Published online Feb 15, 2020. doi: 10.4251/wjgo.v12.i2.173
Retrospective Cohort Study
In Rae Cho, Huapyong Kang, Jung Hyun Jo, Hee Seung Lee, Moon Jae Chung, Jeong Youp Park, Seung Woo Park, Si Young Song, Chansik An, Mi-Suk Park, Seungmin Bang 
World J Gastrointest Oncol 12(2):182-194. Published online Feb 15, 2020. doi: 10.4251/wjgo.v12.i2.182
Retrospective Study
Observational Study
Systematic Reviews
Case Report
Yue-E Liu, Jie Zong, Xue-Ji Chen, Rui Zhang, Xiao-Cang Ren, Zhi-Jun Guo, Chao-Xing Liu, Qiang Lin 
World J Gastrointest Oncol 12(2):237-247. Published online Feb 15, 2020. doi: 10.4251/wjgo.v12.i2.237