Fig. 2From: The significance of preoperative serum carcinoembryonic antigen levels in the prediction of lymph node metastasis and prognosis in locally advanced gastric cancer: a retrospective analysisSurvival analysis in 267 patients with LAGC and patients divided by X-tile plot. a Kaplan-Meier curves for OS when the cutoff value of CEA is 3.4 ng/ml. b Kaplan-Meier curves for OS when the cutoff value of CEA is 7.2 ng/ml. c Division of patients by the cut-off points calculated by X-tile plotBack to article page