No abstract available
MeSH terms
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Aged
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Breath Tests / methods*
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Carbon Isotopes
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Carbon Radioisotopes
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Child
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Female
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Food
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Helicobacter Infections / diagnosis*
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Helicobacter pylori*
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Humans
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Pregnancy
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Sensitivity and Specificity
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Urea
Substances
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Carbon Isotopes
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Carbon Radioisotopes
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Urea