The Efficacy of Surgical Resection versus Radiofrequency Ablation for the Treatment of Single Hepatocellular Carcinoma: A SEER-Based Study

Figure 6

Kaplan–Meier curve of OS and CSS in patients with SR and RFA after PSM—(a and b) patients with Grade I tumors; (c and d) patients with Grade II tumors; (e, f) patients with Grade III and Grade IV tumors.

(a)

(b)

(c)

(d)

(e)

(f)