We combined the immunohistochemical results of VEGFR1 and VEGFR2 with the sorafenib probe staining results of HCC and adjacent tissues and found that the sorafenib probe stained the blood vessels (Figure S8F green arrow; Figure S8G arrow) but did not stain the bile duct (Figure 6O green arrow and Figure S8F yellow arrow). The gene discussed is KDR; the disease is hepatocellular carcinoma.