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The Endowment for Human Development
The Endowment for Human Development
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Bone Formation


7 weeks, 4 days

From The Biology of Prenatal Development.Buy Now

Script: កំនកំនើតឆ្អឹង ដែលហៅថា ការកកើតក្លាយជាឆ្អឹង ចាប់ផ្តើមជាមួួយឆ្អឹងដងកាំបិត ឬឆ្អឹងដងកាំបិត ហើយនិងឆ្អឹងថ្គាមផ្នែកខាងលើ និងខាងក្រោម ។

All ages referenced to fertilization, not last menstrual period.
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