1 Hematology and Oncology, Faculty of Medicine, University of Augsburg, Augsburg, Germany; Bayerisches Zentrum für Krebsforschung (BZKF), Augsburg. klaus.hirschbuehl@uk-augsburg.de.
2 Bayerisches Zentrum für Krebsforschung (BZKF), Augsburg, Germany; Pathology, Faculty of Medicine, University of Augsburg, Augsburg.
3 Nuclear Medicine, Faculty of Medicine, University of Augsburg, Augsburg.
4 Diagostic and Interventional Radiology, Medical Faculty University of Augsburg, Augsburg.
5 Gastroenterology, Faculty of Medicine, University of Augsburg, Augsburg.
6 General, Visceral and Transplantation Surgery, Faculty of Medicine, University of Augsburg, Augsburg.
7 University Hospital Ulm, Internal Medicine III, Ulm.
8 Hematology and Oncology, Faculty of Medicine, University of Augsburg, Augsburg, Germany; Bayerisches Zentrum für Krebsforschung (BZKF), Augsburg.