No abstract available
MeSH terms
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Adult
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Antirheumatic Agents / adverse effects*
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Arthritis, Rheumatoid / complications*
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Female
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Humans
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Lymphoma, Non-Hodgkin / etiology*
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Male
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Methotrexate / adverse effects*
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Middle Aged
Substances
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Antirheumatic Agents
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Methotrexate