PLAU and hepatocellular carcinoma: Huang, “Korean Red Ginseng Suppresses Metastasis of Human Hepatoma SK-Hep1 Cells by Inhibiting Matrix Metalloproteinase-2/-9 and Urokinase Plasminogen Activator,” Evidence-Based Complementary and Alternative Medicine 2012 (2012), https://doi.org/10.1155/2012/965846.