SMIM23 and hepatocellular carcinoma: When serum transcript dynamics of CCNH–C5orf50 before and after treatment were used as a factor to assess the risk for HCC progression/recurrence, the serum level drop of less than seven PCR cycles for the CCNH–C5orf30 transcript in sera after treatment was found to be associated with an increased risk for HCC recurrence/progression (P = 0.016).