1. Department of Internal Medicine I for Hematology With Stem Cell Transplantation, Hemostaseology and Medical Oncology, Ordensklinikum Linz, Linz, Oberösterreich, Austria
2. Department of Surgery, Ordensklinikum Linz, Linz, Oberösterreich, Austria
3. Medical Faculty, Johannes Kepler University Linz, Linz, Austria
4. Institute of Human Genetics, Medical University of Innsbruck, Austria
5. Department of Diagnostic and Interventional Radiology, Ordensklinikum Linz, Linz, Austria
6. Laboratory for Molecular Genetic Diagnostics, Ordensklinikum Linz, Linz, Austria
7. Department of Surgery, Ordensklinikum Linz, Linz, Austria
8. Gastrointestinal Cancer Center, Ordensklinikum Linz, Seilerstaette 4, Linz 4010, Austria