A. Gestational age. Post - term pregnancy is a risk factor for macrosomia.
孕龄过期妊娠是引起巨大胎儿的一个危险因素。
Objective To seek a more accurate equation via ultrasound measuring the local volumes for estimating the fetal body masses(EFBM) in under-, normal- and macrosomia masses.
目的通过超声测量胎儿身体局部体积求出能适用于低体质量儿、正常儿及巨大儿且较为准确的估计胎儿体质量（EFBM）公式。
Objective To seek a more accurate equation via ultrasound measuring the local volumes for estimating the fetal body masses(EFBM) in under-, normal- and macrosomia masses.
目的通过超声测量胎儿身体局部体积求出能适用于低体质量儿、正常儿及巨大儿且较为准确的估计胎儿体质量（EFBM）公式。
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