MELK and hepatocellular carcinoma: The Cox analysis showed that higher expression of MELK was significantly correlated with OS of HCC (HR = 1.79, 95%CI: 1.26∼2.53, p = 0.001), LUAD (HR = 1.41, 95%CI: 1.06∼1.89, p = 0.02), and KIRC (HR = 1.43, 95%CI: 1.05∼1.94, p = 0.022).