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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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20 magg 2000 anni - First Trimester First 3 months Physical milestones

Descrizione:

-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)

Aggiunto al nastro di tempo:

Developmental timeline

ByMarcela Zapata
22 ott 2018
0
0
597

Data:

20 magg 2000 anni
Adesso
~ 25 years ago
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