No abstract available
MeSH terms
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Child, Preschool
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Cost of Illness*
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Developed Countries / statistics & numerical data
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Developing Countries / statistics & numerical data
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Global Health
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Humans
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Immunization Programs / organization & administration
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Infant
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Pediatrics / methods
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Preventive Medicine / methods
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Respiratory Tract Diseases / epidemiology*
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Respiratory Tract Diseases / prevention & control*