No abstract available
MeSH terms
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Bilirubin / analysis*
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Biosensing Techniques*
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Duodenogastric Reflux / complications
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Duodenogastric Reflux / diagnosis
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Fiber Optic Technology
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Gastroesophageal Reflux / diagnosis*
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Gastroesophageal Reflux / physiopathology
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Humans
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Hydrogen-Ion Concentration
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Spectrophotometry