SRF and hepatocellular carcinoma: Furthermore, survival analysis of the latter cohort showed that high mRNA levels of MDM4, SRF, and ELK4 were associated with a lower survival probability of HCC patients following liver resection (p = 0.0003, p = 0.0386, and p = 0.0151, respectively; Figure 1D), while ELK1 expression levels were of no prognostic value (p > 0.05; personal observation, 2020).