No abstract available
MeSH terms
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Anesthesia, General*
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Child
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Child, Preschool
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Drug Interactions
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Humans
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Leucovorin / administration & dosage
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Methotrexate / administration & dosage
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Methotrexate / adverse effects*
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Methotrexate / therapeutic use
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Neoplasms / drug therapy*
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Nitrous Oxide / adverse effects*
Substances
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Nitrous Oxide
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Leucovorin
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Methotrexate