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Open-Access Journal
Editoral
Romaine Charles Nichols, Michael Rutenberg 
World J Gastrointest Surg 11(7):303-307. Published online Jul 27, 2019. doi: 10.4240/wjgs.v11.i7.303
Retrospective Cohort Study
Ewen A Griffiths, Colm Forde, John L Whiting, James Hodson, James Bundred, Emily Evans, Benjamin J Jefferies 
World J Gastrointest Surg 11(7):308-321. Published online Jul 27, 2019. doi: 10.4240/wjgs.v11.i7.308
Meta-Analysis
Shu-You Peng, Jiang-Tao Li, Yuan-Quan Yu, Geng Hao, Xiao-Gang Qi, Yang-Yang Feng, Yun Jin 
World J Gastrointest Surg 11(7):322-332. Published online Jul 27, 2019. doi: 10.4240/wjgs.v11.i7.322
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