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Dimitrios Karakaxas, Anna Sioziou, Gerasimos Aravantinos, Ahmet Coker, Ioannis S Papanikolaou, Theodoros Liakakos, Christos Dervenis, Maria Gazouli 
World J Gastrointest Oncol 8(6):520-525. Published online Jun 15, 2016. doi: 10.4251/wjgo.v8.i6.520