Pearson’s correlation coefficient also indicated that the relation between circ_DYNC1H1 (r = −0.7301, P < 0.0001) or USP14 (r = −0.5537, P = 0.0004) and miR-520a-3p was negative, while circ_DYNC1H1 was positively correlated with USP14 (r = 0.6257, P < 0.0001) in HCC samples (Appendix Figure A2d–f). The gene discussed is USP14; the disease is hepatocellular carcinoma.