1. ASO and rheumatoid factor are inexact.

2. Conclusion Dictation of anti-CCP, anti-RA54, anti-Sa antibody and rheumatoid factor can greatly improve the specificity for diagnosis of early-stage RA.

3. Objective Usual methods of rheumatoid factor(RF) include turbidimetric assay and latex agglutination test.

4. Objective : To investigate the clinical value of rheumatoid factor ( RF ) and antibody ( ANA ).

5. The disease rheumatoid factor negative, the negative response of serum disease.

6. Rheumatoid factor can be identified serologically in most, but not all, RA patients.

7. Antinuclear antibody and rheumatoid factor were negative in both periods.

8. Objective: To identify the diagnostic value of anti-cyclic citrullinated peptide (anti-CCP) antibodies and rheumatoid factor (RF) in patients with rheumatoid arthritis (RA).

8. try its best to gather and create good sentences.

9. The changes in clinical symptoms and signs, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and rheumatoid factor (RF), as well as hemorheology indexes were observed after treatment.

10. Conclusions:Cornea epithelial deficiency is a common complication in dry eye patients after cataract surgery, especially in patients with rheumatoid factor positive .

11. After 8-week treatment, function of joint, adverse reactions, erythrocyte sedimentation rate (ESR), rheumatoid factor (RF), C-reactive protein (CRP) and immunoglobulins levels were observed.

12. Objective To approach the value of anti-cyclic citrullinated peptide antibody(CCP), Anti-keratin antibody(AKA), anti-RA33 and rheumatoid factor(RF) in the diagnosis of rheumatoid arthritis(RA).