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A model for a new pyramid of prenatal care based on the 11 to 13 weeks' assessment.
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Turning the pyramid of prenatal care.
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Frontomaxillary facial angle in fetuses with spina bifida at 11-13 weeks.
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Fetal venous, intracardiac, and arterial blood flow measurements in intrauterine growth retardation: relationship with fetal blood gases.
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