No abstract available
MeSH terms
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Canada / ethnology
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Disease Outbreaks / prevention & control*
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Erythromycin / therapeutic use
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Humans
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Infant
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Pertussis Vaccine / administration & dosage
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Vaccination*
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Whooping Cough / drug therapy
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Whooping Cough / epidemiology*
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Whooping Cough / prevention & control
Substances
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Pertussis Vaccine
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Erythromycin