CLINICAL BIOCHEMISTRY, cilt.39, sa.10, ss.961-965, 2006 (SCI-Expanded)
Objectives: To evaluate frequency of anti-cyclic citrullinated peptide antibodies (anti-CCP) in long-standing rheumatoid arthritis (LsRA) patients and their relationship with extra-articular manifestations of rheumatoid arthritis (RA), in addition to comparing frequency of anti-CCP antibodies in early RA (ERA) and LsRA group.