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Open-Access Journal
Editorial
Renzo Dionigi, Francesco Frattini, Luisa Giavarini, Caterina Valerii, Luigi Boni, Francesca Rovera, Gianlorenzo Dionigi, Stefano Rausei 
World J Gastrointest Surg 4(3):45-54. Published online Mar 27, 2012. doi: 10.4240/wjgs.v4.i3.45
Observation
José Sebastião Santos, Rafael Kemp, José Celso Ardengh, Jorge Elias Jr 
World J Gastrointest Surg 4(3):55-61. Published online Mar 27, 2012. doi: 10.4240/wjgs.v4.i3.55
Review
Noemí Eiró, Francisco J Vizoso 
World J Gastrointest Surg 4(3):62-72. Published online Mar 27, 2012. doi: 10.4240/wjgs.v4.i3.62
Case Report
Michihiro Hayashi, Atsushi Takeshita, Kazuhiro Yamamoto, Nobuhiko Tanigawa 
World J Gastrointest Surg 4(3):73-78. Published online Mar 27, 2012. doi: 10.4240/wjgs.v4.i3.73
Mohammed Khalid Mirza Gari, Salman Yousuf Guraya, Amir Mounir Hussein, Moustafa Mahmoud Nafady Hego 
World J Gastrointest Surg 4(3):79-82. Published online Mar 27, 2012. doi: 10.4240/wjgs.v4.i3.79
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