Table 1 Trial Locations (Germany)

Department of General and Visceral Surgery, Campus Mitte, Charite-Universitaetsmedizin Berlin, Berlin

Prof. Dr. Joachim M. Müller

PD Dr. Jens Neudecker

Department of General, Visceral and Transplantation Surgery, Virchow Klinikum, Charite-Universitaetsmedizin Berlin, Berlin

PD Dr. Daniel Seehofer

Gemeinschaftskrankenhaus Havelhöhe, Medizinische Klinik Schwerpunkt Chirurgie, Berlin

PD Dr. Hans-Peter Lemmens

Department of Surgery, Vivantes Klinikum Neukölln, Berlin

Prof. Dr. Bartholomäus Böhm

Department of General, Visceral and Minimally Invasive Surgery, Park-Klinik Weissensee, Berlin

PD Dr. Georg Arlt

Department of General and Visceral Surgery, Sana Klinikum Lichtenberg, Berlin

Prof. Dr. Klaus Gellert

Department of General and Visceral Surgery, St. Josef Krankenhaus Berlin Tempelhof, Berlin

Prof. Dr. Reiner Kunz

Department of General and Visceral Surgery, Unfallkrankenhaus Berlin, Berlin

Dr. Henryk Thielemann

Department of General, Visceral and Trauma Surgery, St.-Josefs-Hospital Dortmund-Hörde, Dortmund

Dr. Erwin Stein

Division of General and Visceral Surgery, University Medical Center Freiburg, Freiburg

Prof. Dr. Oliver Thomusch

Department for General and Visceral Surgery, Universitaetsmedizin Goettingen, Goettingen

Prof. Dr. Heinz Becker

Department for General and Visceral Surgery, Asklepios Klinik Harburg, Hamburg

Prof. Dr. Friedrich Kallinowski

Department of Surgery, Krankenhaus Salem, Heidelberg

PD Dr. Moritz v. Frankenberg

Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg

Dr. Markus Diener

Department of General, Visceral and Trauma Surgery, Krankenhaus der Augustinerinnen, Koeln

Prof. Dr. K. Tobias E. Beckurts

Department of Surgery, University Medical Center Schleswig-Holstein, Campus Luebeck, Luebeck

PD Dr. Dr. Uwe J. Roblick

Department of General and Abdominal Surgery, Johannes Gutenberg-University Hospital, Mainz.

Dr. Boris Jansen-Winkeln

Department of Surgery, University Hospital Campus Grosshadern, Muenchen

Prof. Dr. Karl-Walter Jauch

Department of Surgery, Klinikum Neumarkt, Neumarkt

Dr. Manfred Kästel

Department of Surgery, Visceral, Thoracic and Vascular Surgery, Ernst Moritz Arndt University, Greifswald, Germany

Prof. Dr. med. Claus-Dieter Heidecke

Department of General, Visceral and Thoracic Surgery, Klinikum am Steinenberg Reutlingen, Reutlingen

Prof. Dr. Thomas Zimmermann

Dr. René Hodina

Department of General, Visceral and Thoracic Surgery, Marienhospital, Stuttgart

Dr. Julius Pochhammer