Radioimmunoassay of the rheumatoid factors.
D000937:Antigen-Antibody Reactions; D001172:Arthritis, Rheumatoid / Q000276:immunology; D006801:Humans; D011863:Radioimmunoassay / Q000379:methods; D012217:Rheumatoid Factor / Q000032:analysis* / Q000378:metabolism
D012217:Rheumatoid Factor