1. Department of General and Visceral Surgery, Zentralklinik Bad Berka, Bad Berka, Germany
2. Laboratory of Pathology and Cytology Bad Berka, Bad Berka, Germany
3. Institute of Pathology, Charité University Hospital Berlin, Berlin, Germany
4. Department of General, Visceral, Transplantation, Vascular and Thoracic Surgery, Hospital of the University of Munich, Munich, Germany
5. Department of Pathology, Ludwig-Maximilians-University Munich, Munich, Germany
6. Department of Pathology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
7. STRATIFYER Molecular Pathology GmbH, Köln, Germany
8. Institute of Pharmacology and Toxicology, Jena University Hospital, Jena, Germany