McHugh, N J HLA-DR antigens and anticardiolipin antibodies in patients with systemic lupus erythematosus. [electronic resource] - Arthritis and rheumatism Dec 1989 - 1623-4 p. digital Publication Type: Comment; Letter ISSN: 0004-3591 Standard No.: 10.1002/anr.1780321222 doi Subjects--Topical Terms: Autoantibodies--analysisCardiolipins--immunologyHLA-DR Antigens--analysisHumansLupus Erythematosus, Systemic--immunology