Arthur R. Schmidt 1, Alexander Meining 2, Michael Birk 2, Brigitte Schumacher 4, Albers David 3, Helmut Messmann 4, Andreas Probst 4, Horst Neuhaus 5, Torsten Beyna 5, Hans-Juergen Richter-Schrag 6, Robert Thimme 7, Thomas Frieling 9, Martin Goetz 8, Martin Faehndrich 10, Karel Caca 1
1 Department of Gastroenterology and Oncology, Klinikum Ludwigsburg, Ludwigsburg, Germany
2 Department of Gastroenterology, Universitiy of Ulm, Ulm, Germany
3 Gastroenterology, Elisabeth Hospital Essen, Essen, Germany
4 Department of Gastroenterology, Klinikum Augsburg, Augsburg, Germany
5 Department of Gastroenterology, Evangelisches Krankehnaus Düsseldorf, Düsseldorf, Germany
6 Department of Gastroenterology, Interdisciplinary Endoscopy Unit, University of Freiburg, Feiburg, Germany
7 Department of Gastroenterology, University of Freiburg, Feiburg, Germany
8 Department of Gastroenterology, Interdisciplinary Endoscopy Unit, University of Tuebingen, Tuebingen, Germany
9 Department of Gastroenterology, Helios Klinikum Krefeld, Krefeld, Germany
10 Department of Gastroenterology, Klinikum Dortmund, Dortmund, Germany