1. Department of Surgical and Perioperative Sciences, Surgery Umeå University Umeå Sweden
2. Wallenberg Centre for Molecular Medicine Umeå University Umeå Sweden
3. Clinical Epidemiology Division, Department of Medicine Solna Karolinska Institutet Stockholm Sweden
4. Department of Clinical Sciences, Obstetrics and Gynecology Umeå University Umeå Sweden
5. Department of Molecular Medicine and Surgery Karolinska Institutet Stockholm Sweden
6. Department of Pelvic Cancer, GI Oncology and Colorectal Surgery Unit Karolinska University Hospital Stockholm Sweden
7. Department of Surgery University of Helsinki and Helsinki University Hospital Helsinki Finland