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Synovial biopsy and the determination of diagnosis or outcome in undifferentiated arthritis
| Synovial tissue | Clinical association | References |
| B cells | Diagnosis RA | [68,69] |
| Plasma cells | Diagnosis RA | [68,69] |
| Integrin expression | Diagnosis RA | [69] |
| Citrinullinated protein | Diagnosis RA | [70] |
RA, rheumatoid arthritis.
