SRC and cancer: The SRC type (univariate Cox hazard ratio (HR), 1.34; 95% confidence interval (CI), 0.83 to 2.15; P = 0.232), female sex (univariate Cox HR, 1.25; 95% CI, 0.99 to 1.58; P = 0.059), vascular invasion (univariate Cox HR, 1.49; 95% CI, 0.92 to 2.44; P = 0.108), the number of retrieved LNs (univariate Cox HR, 1.78; 95% CI, 0.72 to 4.42; P = 0.207), the status of chemotherapy (univariate Cox HR, 1.39; 95% CI, 0.97 to 2.00; P = 0.071), and the distribution of the anatomic location of cancers added no additional risk as mortality risk factors.