Mallas, E Karamanolis, G Zissis, M Karvouni, E and Kostopanagiotou, G Macropoulou, M Serafetinidis, AA Ladas, S and Raptis, SA, Photodynamic therapy in normal pig stomach: Protective effect of octreotide, Gastrointestinal Endoscopy, (36), 893-897, 2004, Georg Thieme Verlag KG, 0016-5107