No abstract available
MeSH terms
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Autoantibodies / blood*
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Humans
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Lupus Erythematosus, Systemic / blood
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Lupus Erythematosus, Systemic / diagnosis*
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Mixed Connective Tissue Disease / blood
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Mixed Connective Tissue Disease / diagnosis*
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Predictive Value of Tests
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RNA, Small Nuclear / immunology*
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Ribonucleoprotein, U1 Small Nuclear / immunology*
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Ribonucleoproteins / immunology
Substances
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Autoantibodies
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RNA, Small Nuclear
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Ribonucleoprotein, U1 Small Nuclear
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Ribonucleoproteins