We noticed a higher expression of genes characterized as “blood vessel morphogenesis” and “regulation of angiogenesis” in Met-low cells than in Met-high cells (Figure 3D, Supplementary Table S3), and, therefore, we analyzed tumor-associated angiogenesis by immunohistochemical staining of CD31-positive endothelial cells and α-smooth muscle actin-positive pericytes. The gene discussed is PECAM1; the disease is neoplasm.