1. 1Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden.
2. 2Department of Clinical Sciences Lund, Oncology/Pathology and Surgery, Lund University, Lund, Sweden.
3. 3Department of Radiation Oncology, University of California, San Francisco, San Francisco, California.
4. 4Department of Surgery, Skåne University Hospital, Lund, Sweden.
5. 5Department of Oncology, Skåne University Hospital, Lund, Sweden.
6. 6Exact Sciences, Madison, Wisconsin.
7. 7University of California San Francisco, San Francisco, California.
8. 8University of Michigan Medical School, Ann Arbor, Michigan.
9. 9Department of Clinical Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden.