Figure 1From: Trends in clinical features, postoperative outcomes, and long-term survival for gastric cancer: a Western experience with 1,278 patients over 30 years Overall survival curves calculated by the Kaplan-Meier method for the three treatment periods; 936 resected patients were included; P < 0.001 (period 1980-1989 versus 1990-1999/2000-2010; log rank). Back to article page