Published on in Vol 5 , No 3 (2016) :Jul-Sept

1 Brandenburg Medical School , Department of Surgery , University Hospital Brandenburg / Havel , Brandenburg , DE
2 2Study Centre of the German Surgical Society (SDGC) , Department of General, Visceral and Transplantation Surgery , University of Heidelberg, Germany , Heidelberg , DE
3 University Hospital of Magdeburg , Institute for Biometry and Medical Informatics , Otto von Guericke University , Magdeburg , DE
4 Institute for Quality Assurance in Surgical Care , Institute , Otto von Guericke University , Magdeburg , DE
5 SRH Hospital , Department of General, Visceral and Pediatric Surgery , SRH Wald Hospital , Gera , DE
6 City Hospital , Department of Surgery , Hospital Leverkusen , Leverkusen , DE
7 Hospital , Department of Surgery , Heinrich Braun Hospital , Kirchberg , DE
8 Hospital , Department of Surgery , Hospital Herford , Herford , DE