No abstract available
MeSH terms
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Adult
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Birth Certificates*
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Data Collection
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Female
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Humans
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Infant, Low Birth Weight
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Infant, Newborn
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Mothers / statistics & numerical data*
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Pregnancy / statistics & numerical data*
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Reproducibility of Results
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Risk Factors
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Smoking / adverse effects
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Smoking / epidemiology*
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United States / epidemiology