1. Basel University, Basel, Switzerland
2. Department of Medical Oncology, University Hospital Basel, Basel, Switzerland
3. Radiation Oncology, St. Clara Hospital, Basel, Switzerland
4. Clarunis, Department of Visceral Surgery, University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, Basel, Switzerland
5. Medical Oncology St. Clara Hospital and Basel University, Basel, Switzerland