prenatal testing
)
Ultrasound scan of a 12 week-old fetus showing (from right) the head, an arm, the body, and a foot. Such scans are often taken at around the twelfth week of pregnancy to determine whether any obvious developmental abnormalities have occurred.
| Testing of pregnant women to determine genetic or other abnormalities in the fetus. Procedures include ultrasound scanning, amniocentesis, and chorionic villus sampling. |
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