Rheumatoid factor
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.
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.
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.
Source: Wikipedia "Rheumatoid factor" · CC BY-SA 4.0
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