No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Aged
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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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Bacterial Infections / epidemiology*
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Databases, Factual
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Female
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Humans
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Japan
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Male
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Methotrexate / administration & dosage*
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Methotrexate / adverse effects
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Middle Aged
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Opportunistic Infections / epidemiology*
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Risk Assessment
Substances
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Antirheumatic Agents
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Methotrexate