No abstract available
MeSH terms
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Age Factors
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Autistic Disorder / epidemiology
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Autistic Disorder / etiology*
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Child, Preschool
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Cohort Studies
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Confounding Factors, Epidemiologic
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Humans
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Immunization Schedule
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Infant
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Inflammatory Bowel Diseases / epidemiology
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Inflammatory Bowel Diseases / etiology
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London / epidemiology
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Measles-Mumps-Rubella Vaccine / adverse effects*
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Safety
Substances
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Measles-Mumps-Rubella Vaccine