Early pregnant stage 妊娠初期
obesity in pregnant stage 妊娠期肥胖
Late-stage pregnant women 孕妇妊娠晚期
late stage pregnant women 晚期妊娠孕妇
·2,447,543篇论文数据，部分数据来源于NoteExpress
Objective:To establish the new technology for detection of fetal cell-free DNA in maternal plasma at early pregnant stage.
目的：建立一种检测早孕妇女血浆中胎儿游离DNA的新方法。
Conclusion obesity in pregnant stage have bad influence both on pregnant women and on fetals, obesity may induce more complications of pregnancy.
结论妊娠期肥胖对产妇和胎儿两方面均产生了不良影响，增加了妊娠和分娩并发症的发生率。
But the most vulnerable stage is when a woman is between four and six months pregnant.
而最脆弱的阶段是孕期的第4个月到第6个月。
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