HLA-DQA1 and systemic lupus erythematosus: Examination of HLA-A, HLA-B, HLA-C, HLA-DQA1, HLA-DQB1 and HLA-DRB1 alleles (Supplementary Table S3, available at Rheumatology online) showed that 8 SLE patients carried the HLA-DQB1*02:02 allele (vs 2 control subjects) and 6 patients carried the HLA-DRB1*15:01 allele (vs 2 control subjects).