Rare card
Rheumatoid factor
- Value
- 50 W
- Attack
- 255
- Defence
- 204
- Players
- 0
Rheumatoid factor (RF) is the autoantibody that was first found in rheumatoid arthritis. It is defined as an antibody against the Fc portion of IgG; different RFs can recognize different parts of the IgG-Fc.
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