1. Department of Surgery, School of Medicine, Klinikum rechts der Isar Technical University of Munich Munich Germany
2. Department of Anaesthesiology, Klinikum Großhadern Ludwig‐Maximilian‐University of Munich Munich Germany
3. Department of Surgery Friedrich‐Schiller‐University of Jena Jena Germany
4. Department of Pathology Helios Klinikum Berlin Berlin Germany