Anders Mario, Rösch Thomas
Department of Gastroenterology and Interdisciplinary Endoscopy, Vivantes Wenckebach-Klinikum, Berlin, Germany.
Department of Interdisciplinary Endoscopy, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
United European Gastroenterol J. 2015 Apr;3(2):171-3. doi: 10.1177/2050640615577535.