Surfactant is usually present in fetal lungs in adequate quantities by:

barry

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11 years ago

Surfactant is usually present in fetal lungs in adequate quantities by:

Surfactant is usually present in fetal lungs in adequate quantities by:
A) 20-22 weeks of pregnancy
B) 22-24 weeks of pregnancy
C) 24-26 weeks of pregnancy
D) 26-28 weeks of pregnancy
E) 28-30 weeks of pregnancy

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barry Author

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11 years ago

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