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The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
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Ready for Birth


9 months

From The Biology of Prenatal Development.Buy Now

Script: 9个月

胎儿释放大量 一种叫做雌激素的 荷尔蒙，开始分娩， 由此开始胎儿向 新生儿的转变。

子宫有力收缩标示分娩， 导致生产。

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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Firm Hand Grasp
Firm Hand Grasp
Ready for Birth
Ready for Birth
DNA
DNA
To the Earth and Back
To the Earth and Back
Fertilization 1
Fertilization 1
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