Regarding cancer, KDR/VEGFR2 rs2071559 has been identified as a predictive factor in breast cancer [31], colorectal cancer (CRC) [32], hepatocellular carcinoma (HCC) [33], non-small cell lung cancer (NSCLC) [34], and renal cell carcinoma (RCC) [35]. This evidence concerns the gene KDR and colorectal cancer.