No abstract available
MeSH terms
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Adolescent
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Child
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Child, Preschool
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Colitis, Ulcerative / epidemiology
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Colitis, Ulcerative / etiology
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Crohn Disease / epidemiology
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Crohn Disease / etiology
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Humans
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Infant
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Infant, Newborn
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Inflammatory Bowel Diseases / epidemiology*
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Inflammatory Bowel Diseases / etiology
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Parturition*
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Seasons*
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Statistics as Topic
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United Kingdom / epidemiology