HLA-DQA1 and breast cancer: In addition, an eGWAS performed on blood from cohorts of healthy women and breast cancer survivors showed an association between ten HLA genes (HLA-C, HLA-E, HLA-F, HLA-G, HLA-H, HLA-DPB1, HLA-DQA1, HLA-DQB1, HLA-DRB3, HLA-DRB4) and SNPs in 100 genes located on human chromosome 6 [37].