No abstract available
MeSH terms
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Adolescent
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Biopsy
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Campylobacter / isolation & purification
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Campylobacter Infections / pathology*
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Child
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Child, Preschool
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Endoscopes*
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Gastric Mucosa / pathology
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Gastroenteritis / pathology*
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Humans
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Intestinal Mucosa / pathology
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Prospective Studies