CXCL13 and nonpapillary renal cell carcinoma: We found ccRCC patients in high-CXCL13-expression group (n = 258) have a worse overall survival (Log rank P = 0.025) and disease free survival (Log rank P < 0.01) compared with ccRCC patients in low-CXCL13-expression group (n = 258) (Figures 2A,B).