No abstract available
Publication types
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Clinical Trial
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Comment
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Letter
MeSH terms
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Antirheumatic Agents / adverse effects*
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Arthritis, Rheumatoid / drug therapy*
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Arthritis, Rheumatoid / microbiology*
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Arthritis, Rheumatoid / mortality
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Bacterial Infections / drug therapy*
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Bacterial Infections / mortality
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Humans
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Methotrexate / adverse effects*
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Opportunistic Infections / chemically induced*
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Opportunistic Infections / epidemiology
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Prospective Studies
Substances
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Antirheumatic Agents
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Methotrexate