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Open-Access Journal
Review
Diogo Branquinho, Paulo Freire, Carlos Sofia 
World J Gastrointest Surg 8(4):284-293. Published online Apr 27, 2016. doi: 10.4240/wjgs.v8.i4.284
Minireviews
Pankaj Kumar Garg, Ashish Jakhetiya, Jyoti Sharma, Mukur Dipi Ray, Durgatosh Pandey 
World J Gastrointest Surg 8(4):294-300. Published online Apr 27, 2016. doi: 10.4240/wjgs.v8.i4.294
Basic Study
Ming Yan, Mao-Min Song, Ri-Xing Bai, Shi Cheng, Wen-Mao Yan 
World J Gastrointest Surg 8(4):301-307. Published online Apr 27, 2016. doi: 10.4240/wjgs.v8.i4.301
Retrospective Cohort Study
Nicolás A Rotholtz, Alejandro G Canelas, Maximiliano E Bun, Mariano Laporte, Emmanuel E Sadava, Natalia Ferrentino, Sebastián A Guckenheimer 
World J Gastrointest Surg 8(4):308-314. Published online Apr 27, 2016. doi: 10.4240/wjgs.v8.i4.308
Retrospective Study
Benedetto Mangiavillano, Angelo Caruso, Raffaele Manta, Roberto Di Mitri, Alberto Arezzo, Nico Pagano, Giuseppe Galloro, Filippo Mocciaro, Massimiliano Mutignani, Carmelo Luigiano, Enrico Antonucci, Rita Conigliaro, Enzo Masci 
World J Gastrointest Surg 8(4):315-320. Published online Apr 27, 2016. doi: 10.4240/wjgs.v8.i4.315
Abhijit Chandra, Saket Kumar, Ajeet Pratap Maurya, Vishal Gupta, Vivek Gupta, Rahul 
World J Gastrointest Surg 8(4):321-325. Published online Apr 27, 2016. doi: 10.4240/wjgs.v8.i4.321
Prospective Study
Systematic Reviews
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