Our results are in good agreement with a meta-analysis of 5 ccRCC expression datasets available in Oncomine [22], in which NDUFA4L2, PHD3, CAIX, and MCT4 showed the 1st, 2nd, 7th, and 11th highest expression level, respectively. The gene discussed is COXFA4L2; the disease is nonpapillary renal cell carcinoma.