No abstract available
Publication types
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Comment
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Comparative Study
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Letter
MeSH terms
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Adolescent
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Body Height
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Body Weight
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Child
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Child, Preschool
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Esophagus / chemistry*
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Esophagus / growth & development
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Female
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Gastroesophageal Reflux / diagnosis*
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Humans
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Hydrogen-Ion Concentration
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Infant
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Male
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Mathematics