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Editorial
Sai Yi Pan, Howard Morrison 
World J Gastrointest Oncol 3(3):33-42. Published online Mar 15, 2011. doi: 10.4251/wjgo.v3.i3.33
BRIEF ARTICLE
Marco Braga, Nicolò Pecorelli, Matteo Frasson, Andrea Vignali, Walter Zuliani, Valerio Di Carlo 
World J Gastrointest Oncol 3(3):43-48. Published online Mar 15, 2011. doi: 10.4251/wjgo.v3.i3.43