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Medical Definition of Antinuclear factor
1. A factor, usually antibodies, present in serum with strong affinity for nuclei and detected by fluorescent antibody technique; present in lupus erythematosus, rheumatic arthritis, and certain other autoimmune conditions; may also be present at lower levels in normal individuals. (05 Mar 2000)
Lexicographical Neighbors of Antinuclear Factor
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