serologic and correlational testing was performed in a series of 65 patients diagnosed as having juvenile arthritis ( ja ) and in 21 age matched controls to detect the presence of antinuclear antibodies ( ana ) , antibodies to ssdna , igm and igg rheumatoid factor ( rf ) , immune complexes ( ic ) and antibodies to bovine type i and human type ii collagen .
C0003241
antibodies
C0035448
rheumatoid factor