No abstract available
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Child, Preschool
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Diphtheria / immunology
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Europe
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Humans
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Immunization / statistics & numerical data*
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Infant
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Measles / epidemiology
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Measles / immunology
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Measles / mortality
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Poliomyelitis / immunology
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Tetanus / immunology
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United States
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Whooping Cough / epidemiology
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Whooping Cough / immunology
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Whooping Cough / mortality