No abstract available
MeSH terms
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BCG Vaccine / administration & dosage*
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Child
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Child Day Care Centers / statistics & numerical data*
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Communicable Diseases / epidemiology
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Communicable Diseases / immunology
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Humans
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Hygiene*
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Precursor Cell Lymphoblastic Leukemia-Lymphoma / epidemiology*
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Precursor Cell Lymphoblastic Leukemia-Lymphoma / immunology
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Precursor Cell Lymphoblastic Leukemia-Lymphoma / prevention & control*
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Risk Assessment
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Tuberculosis / epidemiology
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Tuberculosis / prevention & control
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Tuberculosis / transmission