No abstract available
MeSH terms
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Child, Preschool
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Gastroenteritis / physiopathology*
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Gastrointestinal Hemorrhage / diagnosis*
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Gastrointestinal Hemorrhage / drug therapy
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Gastrointestinal Hemorrhage / virology*
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Hematemesis
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Humans
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Influenza A virus / isolation & purification
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Influenza, Human*
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Male