(Q44221393)
Statements
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The impact of prenatal care in the United States on preterm births in the presence and absence of antenatal high-risk conditions (English)
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Cande V Ananth
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Anthony M Vintzileos
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John C Smulian
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William E Scorza
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Robert A Knuppel
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1 November 2002
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187
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5
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1254-1257
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Identifiers
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