In the last weeks of gestation he'll gain about half a pound a week.

在怀孕的最后几周里他差不多会每周增重半磅。

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Studies using ultrasound have shown that fetuses exhibit REM sleep as early as the 23rd week of gestation.

研究者通过超声波发现，23周大的胎儿即开始在睡眠时快速移动眼球。

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With every week of gestation after 34 weeks, however, Hibbard found that rates of complications dropped - by 40 weeks, only 0.3% of babies showed signs of respiratory distress.

希巴德博士发现，孕期超过34周后，患并发症的几率逐周下降，40周时，仅有0.3%的婴儿出现呼吸综合症的迹象。

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Dr. Gosnell was convicted of several counts of performing abortions beyond the 24-week gestation limit under Pennsylvania law, and other charges.

WSJ: Philadelphia Abortion Doctor Gosnell Convicted of Murder