Rheumatoid arthritis--an overview.
D001172:Arthritis, Rheumatoid / Q000235:genetics / Q000276:immunology; D005260:Female; D006680:HLA Antigens / Q000276:immunology; D006801:Humans; D008297:Male; D012217:Rheumatoid Factor / Q000032:analysis
D006680:HLA Antigens; D012217:Rheumatoid Factor