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Which infrequently used test is usually performed between the 8 th and 11 th week of pregnancy but produces a risk of miscarriage of 1 in 100 to 1 in 200 pregnancies?

User Twyx
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That would be Chorionic villus sampling (CVS). CVS in a addition to being a pharmacy, is also a test that looks for chromosomal abnormalities, like Down syndrome.
User Galmi
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