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Konstantinos H Katsanos, Dimitrios K Christodoulou, Sevasti Kamina, Kosmidou Maria, Evangelia Lambri, Stavroula Theodorou, Konstantinos Tsampoulas, Mitsi Vasiliki, Epameinondas V Tsianos 
World J Gastrointest Endosc 2(4):138-142. Published online Apr 16, 2010. doi: 10.4253/wjge.v2.i4.138