Results:The differences of SF and SI between groups at the first trimester were significant(P<0.05,P<0.01).
结果:孕母孕早期各组间SF和SI的差异有统计学意义(P<0.05,P<0.01)。
参考来源 - 孕母铁缺乏对新生儿铁水平的影响Maternal plasma CRH is low in the first trimester,rises from midgestation to term,and dramatically increases further during labor.
在妊娠初期母体血浆的CRH浓度很低,妊娠中期开始上升,分娩时显著增加。
参考来源 - 促肾上腺皮质素释放激素对人足月妊娠子宫平滑肌大电导钙敏感钾通道的调节·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
At the end of the first trimester, the fetus is about three inches long.
在怀孕的第三个月末，胎儿差不多有三英寸长了。
See your eye doctor within the first trimester of pregnancy.
在怀孕的前三个月要去看眼科医生。
Now that you’ve reached the end of the first trimester it’s fairly safe to spread the news.
既然你已经到了怀孕前期的末期，现在公布消息就相当安全了。
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