No abstract available
MeSH terms
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Azathioprine / adverse effects*
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B-Lymphocytes / metabolism*
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Child
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Crohn Disease / complications*
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Crohn Disease / drug therapy
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Herpesvirus 4, Human*
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Humans
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Immunosuppressive Agents / adverse effects*
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Lymphoproliferative Disorders / etiology*
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Lymphoproliferative Disorders / virology
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Male
Substances
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Immunosuppressive Agents
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Azathioprine