1. Department of Medicine Solna, Clinical Epidemiology Division, Karolinska Institutet, Stockholm, Sweden
2. Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
3. Department of Surgery, Skåne University Hospital, Malmö, Sweden
4. Department of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, 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