Protection of intestinal permeability in the perioperative period - Theodorou, D; Aggeli, P.; Markogiannakis, H; Skouroliakou, M.; Archontovasilis, F.; Kastanidou, O.; Burnetas, A; Xiromeritou, V.; Katsaragakis, S (Journal of Clinical Gastroenterology, 2009)