CASP8 and breast cancer: For example, we identified 3′aQTLs in the caspase 8 (CASP8) gene that strongly colocalized with GWAS risk loci across multiple cancers, including skin cancer (PP4 = 0.961), breast cancer (PP4 = 0.973), and basal cell carcinoma (PP4 = 0.915), but not with eQTLs nor sQTLs.