1. Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
2. Department of Surgery, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
3. Department of Surgery, Sundsvall Hospital, Umeå University, Umeå, Sweden
4. Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
5. Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
6. Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
7. Guys Cancer centre, Kings College London, London, UK
8. Regional Oncologic Centre, NRG, Oncology, and 21st Century Oncology, Pontiac, MI, USA
9. Department of Surgery, The University of Melbourne, Melbourne, Australia