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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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20 mayo 2000 año - First Trimester First 3 months Physical milestones

Descripción:

-Beginning development of spinal cord, nervous system, gastrointestinal system, heart, and lungs- This is a physical milestone. (4 weeks)
-Fetal heartbeat- Physical milestone (8 weeks)

Añadido al timeline:

Developmental timeline

ByMarcela Zapata
22 oct 2018
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0
597

fecha:

20 mayo 2000 año
Ahora mismo
~ 25 years ago
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