The relative value of antibody assays in the differential diagnosis of systemic lupus erythematosus and rheumatoid arthritis with special emphasis to ultramicro ELISA for anti-ds DNA.
D000974:Antibodies, Antinuclear / Q000032:analysis*; D001172:Arthritis, Rheumatoid / Q000175:diagnosis* / Q000276:immunology; D004247:DNA / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007124:Immunoenzyme Techniques; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis* / Q000276:immunology
D000974:Antibodies, Antinuclear; C026904:deoxyribonucleoprotein antibodies; D004247:DNA