HCG18 and type 2 diabetes mellitus: According to the literature, the relevant studies on the 17 genes affected by CNV, including SH3RF3, UGT2B15, TRIM31, MICB, TRIM40, C6orf10, PGBD2, CHAMP1, PDPR, ZSCAN18, ERICH2, SIRPB1, APOBEC3B, RPL23AP82, CYB561D2, EPHA6 and HCG17, were not found in T2DM or ILD.