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Open-Access Journal
Basic Study
Cheng-Yu Hung, Ta-Sen Yeh, Cheng-Kun Tsai, Ren-Chin Wu, Ying-Chieh Lai, Meng-Han Chiang, Kuan-Ying Lu, Chia-Ni Lin, Mei-Ling Cheng, Gigin Lin 
World J Gastrointest Oncol 11(3):181-194. Published online Mar 15, 2019. doi: 10.4251/wjgo.v11.i3.181
Retrospective Cohort Study
Cristian Livadaru, Stefan Morarasu, Tudor Cristian Frunza, Florina A Ghitun, Elena Florina Paiu-Spiridon, Florina Sava, Cristina Terinte, Dan Ferariu, Sorinel Lunca, Gabriel Mihail Dimofte 
World J Gastrointest Oncol 11(3):208-226. Published online Mar 15, 2019. doi: 10.4251/wjgo.v11.i3.208
Observational Study
Systematic Reviews
Elke Van Daele, Yves Van Nieuwenhove, Wim Ceelen, Christian Vanhove, Bart P Braeckman, Anne Hoorens, Jurgen Van Limmen, Oswald Varin, Dirk Van de Putte, Wouter Willaert, Piet Pattyn 
World J Gastrointest Oncol 11(3):250-263. Published online Mar 15, 2019. doi: 10.4251/wjgo.v11.i3.250
Case Report