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Association of Pre-existing Antibodies (Pre-Ab) with Biotherapeutic Products
| All products in survey | Products studied in RA | Products not studied in RA | |
|---|---|---|---|
| Association with pre-Ab | 58% (7/12) | 100% (3/3) | 44% (4/9) |
| No association with pre-Ab | 42% (5/12) | 0% (0/3) | 56% (5/9) |
