No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Breast Feeding*
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Child
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Child, Preschool
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Gastrointestinal Diseases / microbiology
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Gastrointestinal Diseases / prevention & control*
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Hong Kong
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Hospitalization / statistics & numerical data*
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Humans
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Infant
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Infant, Newborn
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Respiratory Tract Infections / prevention & control*
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Time Factors