No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Antimetabolites, Antineoplastic / adverse effects
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Child
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Child, Preschool
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Female
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Hispanic or Latino*
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Humans
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Male
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Methotrexate / adverse effects*
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Methotrexate / blood
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Methotrexate / therapeutic use
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Neoplasms / drug therapy*
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Neoplasms / ethnology
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Neoplasms / etiology
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Risk Factors
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gamma-Glutamyl Hydrolase / therapeutic use*
Substances
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Antimetabolites, Antineoplastic
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gamma-Glutamyl Hydrolase
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Methotrexate