No abstract available
MeSH terms
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Adult
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Arthritis / complications*
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Arthritis / genetics
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HLA Antigens / analysis
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HLA-B27 Antigen
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Humans
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Middle Aged
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Prognosis
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Psoriasis / complications*
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Psoriasis / genetics
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Spondylitis, Ankylosing / complications
Substances
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HLA Antigens
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HLA-B27 Antigen