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The Endowment for Human Development
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Gender Differences


3 months, 2 weeks

From The Biology of Prenatal Development.Buy Now
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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Responds to Touch
Responds to Touch
4D Ultrasound
4D Ultrasound
Gender Differences
Gender Differences
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Tooth Development Begins
Blood Cells and Bone Marrow
Blood Cells and Bone Marrow
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4D Ultrasound
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Jmarguerite Clarke
September 22, 2015 at 10:20 am
Jmarguerite Clarke
pitch has been altered itop enhance validity.

citations must show ref to papers written by BOTH genders
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