(Q46663331)
Statements
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Should spontaneous and medically indicated preterm births be separated for studying aetiology? (English)
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Anna Maria Siega-Riz
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Amy H Herring
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Nancy Dole
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David A Savitz
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Diane Kaczor
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June Murphy
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John M Thorp
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Thaddeus L MacDonald
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1 March 2005
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19
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2
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97-105
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