Figure 4From: Short-term and medium-term clinical outcomes of laparoscopic-assisted and open surgery for colorectal cancer: a single center retrospective case-control study Cancer-free Survival Analysis in Rectal Cancer Cases. The laparoscopic-assisted group is represented by a continuous line and the open surgery group is represented by a dotted line. The cancer-free survival for all rectal cancer cases in the two groups have no significant difference (P = 0.968).Back to article page