1. Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Liebigstr. 20, 04103 Leipzig, Germany
2. Innovation Center Computer Assisted Surgery (ICCAS), Faculty of Medicine, Leipzig University, Semmelweisstr. 14, 04103 Leipzig, Germany
3. Department of General, Visceral, Thoracic and Vascular Surgery, Klinikum St. Georg, Delitzscher Str. 141, 04129 Leipzig, Germany