Estimated date of delivery based on second trimester fetal head circumference; a population based validation of 21451 deliveries.
Acta obstetricia et gynecologica Scandinavica(2019)
摘要
Second trimester head circumference measurements can be safely used to predict EDD. A revision of the pregnancy length to 283 days will reduce the bias of EDD prediction to a level comparable with other methods. This article is protected by copyright. All rights reserved.
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关键词
Estimated day of delivery,head circumference,pregnancy length,ultrasound
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