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The Endowment for Human Development
The Endowment for Human Development
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5 months

From The Biology of Prenatal Development.Buy Now

Script: 5개월

20주까지는 청각 기관인 와우각이 완전히 발육이 끝난 내이 안에서 성인의 크기에 도달한다 지금부터 태아는 점점 더 많은 소리에 반응하게 된다

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