No abstract available
MeSH terms
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Aged
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Epstein-Barr Virus Infections / complications*
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Epstein-Barr Virus Infections / immunology
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Humans
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Immunocompromised Host
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Immunosuppressive Agents / adverse effects*
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Lymphoproliferative Disorders / immunology
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Lymphoproliferative Disorders / pathology
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Lymphoproliferative Disorders / virology
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Male
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Methotrexate / adverse effects*
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Oral Ulcer / immunology
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Oral Ulcer / pathology
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Oral Ulcer / virology*
Substances
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Immunosuppressive Agents
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Methotrexate