al-Ansari, A S HLA-DRB1 associations in systemic lupus erythematosus patients from northwest Spain. [electronic resource] - Clinical and experimental rheumatology - 352 p. digital Publication Type: Letter ISSN: 0392-856X Subjects--Topical Terms: FemaleHLA-DR Antigens--geneticsHLA-DRB1 ChainsHumansLupus Erythematosus, Systemic--geneticsMaleMiddle AgedPhenotypeRetrospective StudiesSpain