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The Endowment for Human Development
The Endowment for Human Development
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Breathing Movements


7 months, 3 weeks

From The Biology of Prenatal Development.Buy Now

Script: À 30 semaines, les mouvements de respiration sont plus fréquents et se produisent 30 à 40 % du temps chez le fœtus moyen.

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