Then, correlation analysis results showed that the expression of HSDL2 was increased in the CC patients with low miR-26a-5p expression, and decreased of HSDL2 was displayed in the patients with high expression of miR-26a-5p, which suggested that the expression of HSDL2 was negatively correlated with miR-26a-5p in the patients with CC (Fig. 5D). The gene discussed is HSDL2; the disease is cholangiocarcinoma.