Moreover, the low-risk group was enriched with ABC transporters, alpha-linolenic acid metabolism, basal cell carcinoma, ether lipid metabolism, glycosylphosphatidylinositol GPI anchor biosynthesis, hedgehog signaling pathway, histidine metabolism, other glycan degradation, steroid hormone biosynthesis, TGF beta signaling pathway (Fig. 7G). Here, ABCG2 is linked to basal cell carcinoma.