1. Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
2. Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
3. Department of Clinical Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
4. Department of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden