Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. karolina.vernmark@regionostergotland.se. Department of Oncology, Linköping University, S-58185, Linköping, Sweden. karolina.vernmark@regionostergotland.se. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. maria.albertsson@regionostergotland.se. Department of Oncology, Linköping University, S-58185, Linköping, Sweden. maria.albertsson@regionostergotland.se. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. bergthor.bjornsson@regionostergotland.se. Departement of Surgery, Linköping University, Linköping, Sweden. bergthor.bjornsson@regionostergotland.se. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. thomas.gasslander@regionostergotland.se. Departement of Surgery, Linköping University, Linköping, Sweden. thomas.gasslander@regionostergotland.se. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. per.sandstrom@regionostergotland.se. Departement of Surgery, Linköping University, Linköping, Sweden. per.sandstrom@regionostergotland.se. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. xiao-feng.sun@liu.se. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. annika.holmqvist@regionostergotland.se. Department of Oncology, Linköping University, S-58185, Linköping, Sweden. annika.holmqvist@regionostergotland.se.