1. Region Vastmanland—Uppsala University, Centre for Clinical Research, Hospital of Vastmanland Vasteras, Vasteras, Sweden
2. Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
3. Department of Surgery, St Goran Hospital, Stockholm, Sweden
4. Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
5. Department of Surgery, Hospital of Vastmanland Vasteras, Vasteras, Sweden