然而，出生前后死亡率(怀孕22周和出生后第一周的婴儿死亡率)几乎相同。
But the perinatal mortality rate (the number of babies that die between the 22nd week of pregnancy and the first week after birth) was about the same.
研究发现，十分之一的男性在孩子出生前后会受到抑郁症困扰，这一比例与女性相同。
One in ten fathers - the same ratio as mothers - were found to suffer before or after birth.
当时奶农的生活都比较贫困，因此他们的奶牛也很瘦弱，近三分之二的小牛在出生前后就会死去。
The farmers were poor, so their beasts were weak—nearly two-thirds of calves died around the time of birth.
该研究在加拿大婴儿出生前后监测系统的协助下进行。
The study was carried out under the auspices of the Canadian Perinatal Surveillance System (CPSS).
她在研究人脑在出生前后是怎样发育的。
She is studying how the human brain develops before and after birth.
目的了解环境铅污染区婴幼儿出生前后铅暴露对其体格发育的影响。
Objective To explore the effect of antenatal and postnatal lead exposure on infants physical development in lead polluting area.
目的为探讨出生前后低水平铅暴露对新生儿出生体重的影响。
Objectivel To survey the effect of low-level lead exposure on newborn weight.
目的为探讨出生前后低水平铅暴露对新生儿出生体重的影响。
Objectivel To survey the effect of low-level lead exposure on newborn weight.
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