IgG and IgM rheumatoid factor in active seronegative nodular rheumatoid arthritis and in children with benign rheumatoid nodules.
D000328:Adult; D000936:Antigen-Antibody Complex / Q000276:immunology; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D002648:Child; D003168:Complement Fixation Tests; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000302:isolation & purification*; D007075:Immunoglobulin M / Q000302:isolation & purification*; D008297:Male; D012215:Rheumatic Nodule / Q000276:immunology*; D012217:Rheumatoid Factor / Q000302:isolation & purification*
D000936:Antigen-Antibody Complex; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D012217:Rheumatoid Factor