Prospective population-based cohort study of maternal obesity as a source of error in gestational age estimation at 11-14 weeks.
Acta obstetricia et gynecologica Scandinavica（2016）
摘要
Rising maternal BMI appears to be associated with postponement of ultrasound EDD.
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关键词
Overweight,body mass index,estimated date of delivery,first trimester screening,last menstrual period,obesity,pregnancy dating,ultrasound
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