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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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Breathing Movements

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From The Biology of Prenatal Development.

Script: Vào khoảng 30 tuần, hoạt động hô hấp phổ biến hơn và chiếm 30 đến 40% thời gian của một thai nhi trung bình.

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.

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4D Ultrasound

4D Ultrasound

4D Ultrasound

4D Ultrasound

Breathing Movements

Breathing Movements

4D Ultrasound

4D Ultrasound

4D Ultrasound

4D Ultrasound

Alveoli Formation

Alveoli Formation

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