Affiliation: | (1) Sonderauftrag für Interventionelle und Laser-Endoskopie, 1st Surgical Department, Landeskrankenanstallen Salzburg, A-5020 Salzburg, Austria;(2) Ludwig-Boltzmann-Institute for Experimental and Gastroenterological Surgery, Landeskrankenanstalten Salzburg, A-5020 Salzburg, Austria |