Department of Oncology, Hematology and Palliative Care, Marien Hospital Stuttgart;
Department of Hematology, Oncology and Rheumatology, University of Tuebingen;
Matrigene GmbH Company, Reutlingen;
Department of Abdominal and Transplant Surgery, University of Essen;
Department of Pathology, University of Tuebingen;
Department of Gastroenterology, Hepatology and Infectious Diseases, University of Tuebingen;