Figure 1From: Open versus laparoscopic liver resection for colorectal liver metastases (the Oslo-CoMet study): study protocol for a randomized controlled trialOslo-CoMet study flowchart. CEA, carcinoembryonic antigen; CT, computed tomography; ERAS, Enhanced Recovery After Surgery; p.o., postoperative; QoL, quality of life.Back to article page