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Open-Access Journal
Editorial
Livia Archibugi, Sabrina Gloria Giulia Testoni, Miriam Redegalli, Maria Chiara Petrone, Michele Reni, Massimo Falconi, Claudio Doglioni, Gabriele Capurso, Paolo Giorgio Arcidiacono 
World J Gastrointest Oncol 11(11):933-945. Published online Nov 15, 2019. doi: 10.4251/wjgo.v11.i11.933
Review
Wu-Zhen Chen, Jing-Xin Jiang, Xiu-Yan Yu, Wen-Jie Xia, Peng-Xin Yu, Ke Wang, Zhi-Yong Zhao, Zhi-Gang Chen 
World J Gastrointest Oncol 11(11):946-956. Published online Nov 15, 2019. doi: 10.4251/wjgo.v11.i11.946
Ya-Jun Luo, Qing-Mei Huang, Yan Ren, Zi-Lin Liu, Cheng-Fei Xu, Hao Wang, Jiang-Wei Xiao 
World J Gastrointest Oncol 11(11):957-970. Published online Nov 15, 2019. doi: 10.4251/wjgo.v11.i11.957
Basic Study
Vidhya A Nair, Noura A Al-khayyal, Sivaramakrishnan Sivaperumal, Wael M Abdel-Rahman 
World J Gastrointest Oncol 11(11):971-982. Published online Nov 15, 2019. doi: 10.4251/wjgo.v11.i11.971
Case Control Study
Manoela Dias Susi, de Matos Lourenço Caroline, Lucas Trevizani Rasmussen, Spencer Luis Marques Payão, Ana Flávia Teixeira Rossi, Ana Elizabete Silva, Juliana Garcia de Oliveira-Cucolo 
World J Gastrointest Oncol 11(11):998-1010. Published online Nov 15, 2019. doi: 10.4251/wjgo.v11.i11.998
Retrospective Cohort Study
Aslam R Syed, Payal Thakkar, Zachary D Horne, Heitham Abdul-Baki, Gursimran Kochhar, Katie Farah, Shyam Thakkar 
World J Gastrointest Oncol 11(11):1011-1020. Published online Nov 15, 2019. doi: 10.4251/wjgo.v11.i11.1011
Ka-On Lam, Man-Chi Fu, Kin-Sang Lau, Kam-Mo Lam, Cheuk-Wai Choi, Wan-Hang Chiu, Cheng-Man Yuen, Lai-Han Kwok, Fong-Kit Tam, Wing-Lok Chan, Sum-Yin Chan, Pui-Ying Ho, To-Wai Leung, Ho-Fun Lee 
World J Gastrointest Oncol 11(11):1031-1042. Published online Nov 15, 2019. doi: 10.4251/wjgo.v11.i11.1031
Retrospective Study
Observational Study
Meta-Analysis