SEMA3F and hepatocellular carcinoma: Unfortunately, due to the lower amplification efficiency of the IQCA1 and OIT3, we finally selected the remaining four genes, namely GAS2L3, SNRPA, SNRPD2, and SEMA3F. Compared with adjacent normal tissues, we observed a highly expressed level of GAS2L3 (Fig. 6a, P =0.036), SNRPA (P < 0.001), and SNRPD2 (P = 0.002) genes in HCC tissues.