1. Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway;
2. Department of Oncology, Østfold Hospital Trust, Grålum, Norway;
3. Department of Cellular Therapy, Oslo University Hospital Radiumhospitalet, Oslo, Norway;
4. Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway;
5. Department of Oncology, Oslo University Hospital, Oslo, Norway;
6. Department of Gastroenterological Surgery, Oslo University Hospital Radiumhospitalet, Oslo, Norway