No abstract available
MeSH terms
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Adult
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Aged
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Antibodies, Antinuclear / blood*
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Arthritis, Rheumatoid / blood
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Arthritis, Rheumatoid / complications*
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Female
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Humans
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Male
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Middle Aged
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Severity of Illness Index*
Substances
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Antibodies, Antinuclear
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antiperinuclear factor