Primary Tumor Characteristics Are Important Prognostic Factors for Sorafenib-Treated Patients with Metastatic Renal Cell Carcinoma: A Retrospective Multicenter Study

Figure 3

Comparison of overall survival (OS) according to the presence of bone metastasis and/or T3-4 stage, which were poor prognostic factors of OS in first-line sorafenib-treated patients.