RT Journal Article SR Electronic T1 Protective effect of A at position –168 in the type III promoter of the MHCIITA gene in systemic lupus erythematosus JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1263 OP 1264 DO 10.1136/ard.2006.066142 VO 66 IS 9 A1 Hiroshi Okamoto A1 Hirotaka Kaneko A1 Chihiro Terai A1 Naoyuki Kamatani YR 2007 UL http://ard.bmj.com/content/66/9/1263.abstract AB