Fig. 2
Kaplan–Meier curves of relapse-free survival (a) and overall survival (b) in colorectal cancer patients with liver metastases after hepatectomy based on pathologic response. Patients in the pathologic response group had a longer recurrence-free survival (RFS) (median RFS: 9.9 vs. 6.5 months, P = 0.009; a) and longer overall survival (OS) (median OS: 40.7 vs. 28.1 months, P = 0.040; b) than patients in the non-pathologic response group