1. Department for Hepato-Pancreato-Biliary Surgery, Ernst von Bergmann Clinic, Potsdam, Germany
2. Department for Gastroenterology and Infectiology, Ernst von Bergmann Clinic, Potsdam, Germany
3. Institute for Pathology, Ernst von Bergmann Clinic, Potsdam, Germany
4. Department for Radiology, Ernst von Bergmann Clinic, Potsdam, Germany
5. Clinic for General-, Visceral-, Vascular- and Thoracic Surgery, Ernst von Bergmann Clinic, Potsdam, Germany