Prognostic Factors of Radiofrequency Ablation plus Systemic Chemotherapy for Unresectable Colorectal Cancer with Liver Metastasis

Figure 1

Survival rate subgroup analysis based on number of lesions in the liver (a), size of the largest liver lesion (b), ECOG status (c), pre-RFA serum CEA status (d).

(a) ≤

(b)

(c)

(d)