(Q47314926)
Statements
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Comparison of pregnancy dating by last menstrual period, ultrasound scanning, and their combination (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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James W Terry
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John M Thorp
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1 December 2002
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187
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6
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1660-1666
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