Then, a prognostic index for all cancer was constructed by the formula MRG = expression level of BIRC5 × (−0.4126) + expression level of PLK1 × 0.39986 + expression level of CDKN3 × 0.2651 + expression level of CYP4B1 × (−0.0955). This evidence concerns the gene BIRC5 and cancer.