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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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Response to Touch


6 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Script: Berøring av embryoets munn fører til en refleksiv tilbaketrekning av hodet.

All ages referenced to fertilization, not last menstrual period.
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