Figure 1

Kaplan–Meier curve of survival after surgery in patients with stages I–III colorectal cancer evaluated using tumor marker index levels. (a) Relapse-free survival and (b) cancer-specific survival.

Kaplan–Meier curve of survival after surgery in patients with stages I–III colorectal cancer evaluated using tumor marker index levels. (a) Relapse-free survival and (b) cancer-specific survival.