Prognostic Significance of Preoperative Serum Carcinoembryonic Antigen Varies with Lymph Node Metastasis Status in Colorectal Cancer

Figure 1

Survival analysis of CRC patients. (a) The best cutoff value calculated by R (survival ROC). (b) The 5-year survival rate of two subgroups. ROC: receiver operating characteristic curve.

(a)

(b)