No abstract available
MeSH terms
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Adult
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Aged
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Bile Acids and Salts / analysis
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Gastric Acidity Determination
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Gastric Juice / analysis
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Gastroesophageal Reflux / physiopathology*
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Humans
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Male
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Middle Aged
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Polyethylene Glycols / analysis
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Pylorus / physiopathology*
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Time Factors
Substances
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Bile Acids and Salts
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Polyethylene Glycols