No abstract available
MeSH terms
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Adolescent
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Antibodies, Bacterial / analysis*
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Child
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Dyspepsia / immunology*
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Helicobacter pylori / immunology*
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Humans
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Immunoglobulin A / analysis
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Immunoglobulin G / analysis
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Prospective Studies
Substances
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Antibodies, Bacterial
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Immunoglobulin A
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Immunoglobulin G