SLC38A1 and neoplasm: Although other clinicopathological characteristics including clinical stage, T stage, M stage, differentiation, tumor size, and tumor thrombus, were also related to OS, as based on univariate cox regression analysis, only the expression levels of SLC38A1 remained associated with OS when we performed multivariate cox regression analysis (HR: 1.397, 95% CI: 1.144–1.705, P < 0.001; HR: 1.766, 95%CI: 1.061–2.940, P = 0.029, respectively), as shown in Figures 5(c) and 5(d).