No abstract available
MeSH terms
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Antirheumatic Agents / administration & dosage
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Antirheumatic Agents / adverse effects*
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Arthritis, Rheumatoid / drug therapy*
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Etanercept
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Humans
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Immunoglobulin G / administration & dosage
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Immunoglobulin G / adverse effects*
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Legionellosis / diagnosis*
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Male
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Methotrexate / therapeutic use
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Middle Aged
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Opportunistic Infections / diagnosis*
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Receptors, Tumor Necrosis Factor / administration & dosage
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Risk Factors
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Tumor Necrosis Factor-alpha / antagonists & inhibitors
Substances
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Antirheumatic Agents
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Immunoglobulin G
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Receptors, Tumor Necrosis Factor
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Tumor Necrosis Factor-alpha
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Etanercept
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Methotrexate