Figure 4
From: Model-based estimation of measures of association for time-to-event outcomes
Kaplan-Meier overall survival curves. Patients with retroperitoneal soft tissue sarcoma. Left panel: Surgical Margins. All patients underwent surgery but some of them (14), especially those with advanced disease status, failed to have complete resection. Right panel: Grading (1: 60; 2: 62; 3: 70).