Multiple nodules in juvenile chronic polyarthritis.
D001171:Arthritis, Juvenile / Q000473:pathology*; D001706:Biopsy; D002648:Child; D006801:Humans; D011379:Prognosis; D012215:Rheumatic Nodule / Q000473:pathology*; D012217:Rheumatoid Factor / Q000032:analysis
D012217:Rheumatoid Factor