Neural tube defects are actually one of the most common types of birth defects that occur in the United States. (babygaga.com)
Folic acid is an essential vitamin, however, because adequate levels can prevent a specific type of birth defect known as a neural tube defect. (doctor-info.website)
Amniotic fluid contains fetal cells and chemicals produced by the baby that, when analyzed, can help determine certain types of birth defects. (womenandinfants.org)