Fig. 2From: A single-arm phase II trial of combined chemotherapy with S-1, oral leucovorin, and bevacizumab in heavily pre-treated patients with metastatic colorectal cancerKaplan–Meier survival curve for progression free survival (PFS) in the intention to treat (ITT) population (n = 31). The median PFS was 5.3 months (95 % CI, 2.1–9.3)Back to article page