No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Brazil
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Child Development
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Child, Preschool
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Cohort Studies*
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Developing Countries*
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Follow-Up Studies
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Humans
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Infant
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Infant Mortality
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Infant, Low Birth Weight
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Infant, Newborn
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Longitudinal Studies
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Pediatrics*
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Social Class
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Urban Population