
Additional diagnostic and clinical value of anti-cyclic citrullinated peptide antibodies compared with rheumatoid factor isotypes in rheumatoid arthritis
Keywords: ACR; American College of Rheumatology; ANA; antinuclear antibodies; AKA; antikeratin antibodies; APF; antiperinuclear factor; CCP; cyclic citrullinated peptide; DMARD; disease modifying antirheumatic drug; ELISA; enzyme-linked immunosorbent assay; PPV; po